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Finding the Fourth Proportional to 147,388.52, 203,428.90 and 93,663

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Solution

The fourth proportional to 147,388.52, 203,428.90 and 93,663 is: 129,275.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,388.52 : 203,428.90 = 93,663 : x
  2. Step 2: Convert to fraction form
    147,388.52/203,428.90 = 93,663/x
  3. Step 3: Cross multiply
    147,388.52x = 203,428.90 × 93,663
  4. Step 4: Simplify right side
    147,388.52x = 19,053,761,060.70
  5. Step 5: Solve for x
    x = 19,053,761,060.70/147,388.52
  6. Step 6: Final answer
    x = 129,275.75

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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.