Home / 125,110.32-172,609.38-71,356.68

Finding the Fourth Proportional to 125,110.32, 172,609.38 and 71,356.68

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Solution

The fourth proportional to 125,110.32, 172,609.38 and 71,356.68 is: 98,447.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,110.32 : 172,609.38 = 71,356.68 : x
  2. Step 2: Convert to fraction form
    125,110.32/172,609.38 = 71,356.68/x
  3. Step 3: Cross multiply
    125,110.32x = 172,609.38 × 71,356.68
  4. Step 4: Simplify right side
    125,110.32x = 12,316,832,293.66
  5. Step 5: Solve for x
    x = 12,316,832,293.66/125,110.32
  6. Step 6: Final answer
    x = 98,447.77

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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.