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Finding the Fourth Proportional to 157,044.80, 235,480.80 and 68,283.20

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Solution

The fourth proportional to 157,044.80, 235,480.80 and 68,283.20 is: 102,387.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,044.80 : 235,480.80 = 68,283.20 : x
  2. Step 2: Convert to fraction form
    157,044.80/235,480.80 = 68,283.20/x
  3. Step 3: Cross multiply
    157,044.80x = 235,480.80 × 68,283.20
  4. Step 4: Simplify right side
    157,044.80x = 16,079,382,562.56
  5. Step 5: Solve for x
    x = 16,079,382,562.56/157,044.80
  6. Step 6: Final answer
    x = 102,387.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.