Home / 124,717.33-172,113.29-74,445.49

Finding the Fourth Proportional to 124,717.33, 172,113.29 and 74,445.49

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Solution

The fourth proportional to 124,717.33, 172,113.29 and 74,445.49 is: 102,736.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,717.33 : 172,113.29 = 74,445.49 : x
  2. Step 2: Convert to fraction form
    124,717.33/172,113.29 = 74,445.49/x
  3. Step 3: Cross multiply
    124,717.33x = 172,113.29 × 74,445.49
  4. Step 4: Simplify right side
    124,717.33x = 12,813,058,209.56
  5. Step 5: Solve for x
    x = 12,813,058,209.56/124,717.33
  6. Step 6: Final answer
    x = 102,736.79

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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.