Home / 121,538.60-182,306.70-38,432.60

Finding the Fourth Proportional to 121,538.60, 182,306.70 and 38,432.60

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Solution

The fourth proportional to 121,538.60, 182,306.70 and 38,432.60 is: 57,648.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,538.60 : 182,306.70 = 38,432.60 : x
  2. Step 2: Convert to fraction form
    121,538.60/182,306.70 = 38,432.60/x
  3. Step 3: Cross multiply
    121,538.60x = 182,306.70 × 38,432.60
  4. Step 4: Simplify right side
    121,538.60x = 7,006,520,478.42
  5. Step 5: Solve for x
    x = 7,006,520,478.42/121,538.60
  6. Step 6: Final answer
    x = 57,648.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.