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Finding the Fourth Proportional to 152,039.78, 209,848.20 and 88,414.28

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Solution

The fourth proportional to 152,039.78, 209,848.20 and 88,414.28 is: 122,031.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,039.78 : 209,848.20 = 88,414.28 : x
  2. Step 2: Convert to fraction form
    152,039.78/209,848.20 = 88,414.28/x
  3. Step 3: Cross multiply
    152,039.78x = 209,848.20 × 88,414.28
  4. Step 4: Simplify right side
    152,039.78x = 18,553,577,581.54
  5. Step 5: Solve for x
    x = 18,553,577,581.54/152,039.78
  6. Step 6: Final answer
    x = 122,031.07

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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.