Home / 125,099.06-172,593.86-71,345.43

Finding the Fourth Proportional to 125,099.06, 172,593.86 and 71,345.43

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Solution

The fourth proportional to 125,099.06, 172,593.86 and 71,345.43 is: 98,432.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,099.06 : 172,593.86 = 71,345.43 : x
  2. Step 2: Convert to fraction form
    125,099.06/172,593.86 = 71,345.43/x
  3. Step 3: Cross multiply
    125,099.06x = 172,593.86 × 71,345.43
  4. Step 4: Simplify right side
    125,099.06x = 12,313,782,800.33
  5. Step 5: Solve for x
    x = 12,313,782,800.33/125,099.06
  6. Step 6: Final answer
    x = 98,432.26

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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.