Home / 102,031.92-152,763.84-76,996.08

Finding the Fourth Proportional to 102,031.92, 152,763.84 and 76,996.08

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Solution

The fourth proportional to 102,031.92, 152,763.84 and 76,996.08 is: 115,279.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,031.92 : 152,763.84 = 76,996.08 : x
  2. Step 2: Convert to fraction form
    102,031.92/152,763.84 = 76,996.08/x
  3. Step 3: Cross multiply
    102,031.92x = 152,763.84 × 76,996.08
  4. Step 4: Simplify right side
    102,031.92x = 11,762,216,845.75
  5. Step 5: Solve for x
    x = 11,762,216,845.75/102,031.92
  6. Step 6: Final answer
    x = 115,279.78

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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.