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Finding the Fourth Proportional to 168,458.42, 232,473.11 and 91,978.17

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Solution

The fourth proportional to 168,458.42, 232,473.11 and 91,978.17 is: 126,930.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,458.42 : 232,473.11 = 91,978.17 : x
  2. Step 2: Convert to fraction form
    168,458.42/232,473.11 = 91,978.17/x
  3. Step 3: Cross multiply
    168,458.42x = 232,473.11 × 91,978.17
  4. Step 4: Simplify right side
    168,458.42x = 21,382,450,772.12
  5. Step 5: Solve for x
    x = 21,382,450,772.12/168,458.42
  6. Step 6: Final answer
    x = 126,930.14

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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.