Home / 111,591.09-153,958.23-63,186.40

Finding the Fourth Proportional to 111,591.09, 153,958.23 and 63,186.40

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Solution

The fourth proportional to 111,591.09, 153,958.23 and 63,186.40 is: 87,176.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,591.09 : 153,958.23 = 63,186.40 : x
  2. Step 2: Convert to fraction form
    111,591.09/153,958.23 = 63,186.40/x
  3. Step 3: Cross multiply
    111,591.09x = 153,958.23 × 63,186.40
  4. Step 4: Simplify right side
    111,591.09x = 9,728,065,919.18
  5. Step 5: Solve for x
    x = 9,728,065,919.18/111,591.09
  6. Step 6: Final answer
    x = 87,176.01

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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.