Home / 87,458.10-131,187.15-69,962.10

Finding the Fourth Proportional to 87,458.10, 131,187.15 and 69,962.10

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Solution

The fourth proportional to 87,458.10, 131,187.15 and 69,962.10 is: 104,943.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,458.10 : 131,187.15 = 69,962.10 : x
  2. Step 2: Convert to fraction form
    87,458.10/131,187.15 = 69,962.10/x
  3. Step 3: Cross multiply
    87,458.10x = 131,187.15 × 69,962.10
  4. Step 4: Simplify right side
    87,458.10x = 9,178,128,507.02
  5. Step 5: Solve for x
    x = 9,178,128,507.02/87,458.10
  6. Step 6: Final answer
    x = 104,943.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.