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Finding the Fourth Proportional to 124,221.42, 171,425.03 and 67,631.58

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Solution

The fourth proportional to 124,221.42, 171,425.03 and 67,631.58 is: 93,331.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,221.42 : 171,425.03 = 67,631.58 : x
  2. Step 2: Convert to fraction form
    124,221.42/171,425.03 = 67,631.58/x
  3. Step 3: Cross multiply
    124,221.42x = 171,425.03 × 67,631.58
  4. Step 4: Simplify right side
    124,221.42x = 11,593,745,292.29
  5. Step 5: Solve for x
    x = 11,593,745,292.29/124,221.42
  6. Step 6: Final answer
    x = 93,331.29

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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.