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Finding the Fourth Proportional to 155,449.80, 232,692.03 and 84,195.47

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Solution

The fourth proportional to 155,449.80, 232,692.03 and 84,195.47 is: 126,031.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,449.80 : 232,692.03 = 84,195.47 : x
  2. Step 2: Convert to fraction form
    155,449.80/232,692.03 = 84,195.47/x
  3. Step 3: Cross multiply
    155,449.80x = 232,692.03 × 84,195.47
  4. Step 4: Simplify right side
    155,449.80x = 19,591,613,246.67
  5. Step 5: Solve for x
    x = 19,591,613,246.67/155,449.80
  6. Step 6: Final answer
    x = 126,031.77

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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.