Home / 124,921.76-172,387.68-71,224.07

Finding the Fourth Proportional to 124,921.76, 172,387.68 and 71,224.07

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Solution

The fourth proportional to 124,921.76, 172,387.68 and 71,224.07 is: 98,286.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,921.76 : 172,387.68 = 71,224.07 : x
  2. Step 2: Convert to fraction form
    124,921.76/172,387.68 = 71,224.07/x
  3. Step 3: Cross multiply
    124,921.76x = 172,387.68 × 71,224.07
  4. Step 4: Simplify right side
    124,921.76x = 12,278,152,187.46
  5. Step 5: Solve for x
    x = 12,278,152,187.46/124,921.76
  6. Step 6: Final answer
    x = 98,286.74

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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.