Home / 103,859,154.20-142,575,104.52-89,149,282.88

Finding the Fourth Proportional to 103,859,154.20, 142,575,104.52 and 89,149,282.88

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Solution

The fourth proportional to 103,859,154.20, 142,575,104.52 and 89,149,282.88 is: 122,381,781.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,859,154.20 : 142,575,104.52 = 89,149,282.88 : x
  2. Step 2: Convert to fraction form
    103,859,154.20/142,575,104.52 = 89,149,282.88/x
  3. Step 3: Cross multiply
    103,859,154.20x = 142,575,104.52 × 89,149,282.88
  4. Step 4: Simplify right side
    103,859,154.20x = 12,710,468,324,499,046
  5. Step 5: Solve for x
    x = 12,710,468,324,499,046/103,859,154.20
  6. Step 6: Final answer
    x = 122,381,781.58

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.