Home / 166,979.60-230,440.68-91,531.28

Finding the Fourth Proportional to 166,979.60, 230,440.68 and 91,531.28

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Solution

The fourth proportional to 166,979.60, 230,440.68 and 91,531.28 is: 126,318.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,979.60 : 230,440.68 = 91,531.28 : x
  2. Step 2: Convert to fraction form
    166,979.60/230,440.68 = 91,531.28/x
  3. Step 3: Cross multiply
    166,979.60x = 230,440.68 × 91,531.28
  4. Step 4: Simplify right side
    166,979.60x = 21,092,530,404.47
  5. Step 5: Solve for x
    x = 21,092,530,404.47/166,979.60
  6. Step 6: Final answer
    x = 126,318.01

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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.