Home / 124,945.28-172,245.13-89,073.01

Finding the Fourth Proportional to 124,945.28, 172,245.13 and 89,073.01

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Solution

The fourth proportional to 124,945.28, 172,245.13 and 89,073.01 is: 122,792.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,945.28 : 172,245.13 = 89,073.01 : x
  2. Step 2: Convert to fraction form
    124,945.28/172,245.13 = 89,073.01/x
  3. Step 3: Cross multiply
    124,945.28x = 172,245.13 × 89,073.01
  4. Step 4: Simplify right side
    124,945.28x = 15,342,391,820.38
  5. Step 5: Solve for x
    x = 15,342,391,820.38/124,945.28
  6. Step 6: Final answer
    x = 122,792.89

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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.