Home / 111,220.12-153,440.22-70,923.16

Finding the Fourth Proportional to 111,220.12, 153,440.22 and 70,923.16

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Solution

The fourth proportional to 111,220.12, 153,440.22 and 70,923.16 is: 97,846.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,220.12 : 153,440.22 = 70,923.16 : x
  2. Step 2: Convert to fraction form
    111,220.12/153,440.22 = 70,923.16/x
  3. Step 3: Cross multiply
    111,220.12x = 153,440.22 × 70,923.16
  4. Step 4: Simplify right side
    111,220.12x = 10,882,465,273.50
  5. Step 5: Solve for x
    x = 10,882,465,273.50/111,220.12
  6. Step 6: Final answer
    x = 97,846.19

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Half scale
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Double scale
Find fourth proportional to 111,221.12, 153,441.60 and 70,924.16
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.