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Finding the Fourth Proportional to 168,384.83, 232,310.16 and 129,634.56

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Solution

The fourth proportional to 168,384.83, 232,310.16 and 129,634.56 is: 178,848.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,384.83 : 232,310.16 = 129,634.56 : x
  2. Step 2: Convert to fraction form
    168,384.83/232,310.16 = 129,634.56/x
  3. Step 3: Cross multiply
    168,384.83x = 232,310.16 × 129,634.56
  4. Step 4: Simplify right side
    168,384.83x = 30,115,425,375.13
  5. Step 5: Solve for x
    x = 30,115,425,375.13/168,384.83
  6. Step 6: Final answer
    x = 178,848.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.