Home / 111,336.13-153,650.21-66,040.93

Finding the Fourth Proportional to 111,336.13, 153,650.21 and 66,040.93

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Solution

The fourth proportional to 111,336.13, 153,650.21 and 66,040.93 is: 91,140.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,336.13 : 153,650.21 = 66,040.93 : x
  2. Step 2: Convert to fraction form
    111,336.13/153,650.21 = 66,040.93/x
  3. Step 3: Cross multiply
    111,336.13x = 153,650.21 × 66,040.93
  4. Step 4: Simplify right side
    111,336.13x = 10,147,202,763.10
  5. Step 5: Solve for x
    x = 10,147,202,763.10/111,336.13
  6. Step 6: Final answer
    x = 91,140.25

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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.