Home / 104,184.39-156,278.89-72,131.88

Finding the Fourth Proportional to 104,184.39, 156,278.89 and 72,131.88

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Solution

The fourth proportional to 104,184.39, 156,278.89 and 72,131.88 is: 108,199.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,184.39 : 156,278.89 = 72,131.88 : x
  2. Step 2: Convert to fraction form
    104,184.39/156,278.89 = 72,131.88/x
  3. Step 3: Cross multiply
    104,184.39x = 156,278.89 × 72,131.88
  4. Step 4: Simplify right side
    104,184.39x = 11,272,690,140.01
  5. Step 5: Solve for x
    x = 11,272,690,140.01/104,184.39
  6. Step 6: Final answer
    x = 108,199.42

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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.