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Finding the Fourth Proportional to 124,565.52, 171,905.58 and 70,860

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Solution

The fourth proportional to 124,565.52, 171,905.58 and 70,860 is: 97,789.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,565.52 : 171,905.58 = 70,860 : x
  2. Step 2: Convert to fraction form
    124,565.52/171,905.58 = 70,860/x
  3. Step 3: Cross multiply
    124,565.52x = 171,905.58 × 70,860
  4. Step 4: Simplify right side
    124,565.52x = 12,181,229,398.80
  5. Step 5: Solve for x
    x = 12,181,229,398.80/124,565.52
  6. Step 6: Final answer
    x = 97,789.74

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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.