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Finding the Fourth Proportional to 155,077.26, 232,613.18 and 84,918.30

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Solution

The fourth proportional to 155,077.26, 232,613.18 and 84,918.30 is: 127,375.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,077.26 : 232,613.18 = 84,918.30 : x
  2. Step 2: Convert to fraction form
    155,077.26/232,613.18 = 84,918.30/x
  3. Step 3: Cross multiply
    155,077.26x = 232,613.18 × 84,918.30
  4. Step 4: Simplify right side
    155,077.26x = 19,753,115,803.19
  5. Step 5: Solve for x
    x = 19,753,115,803.19/155,077.26
  6. Step 6: Final answer
    x = 127,375.97

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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.