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Finding the Fourth Proportional to 158,352.96, 218,527.80 and 86,732.76

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Solution

The fourth proportional to 158,352.96, 218,527.80 and 86,732.76 is: 119,691.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,352.96 : 218,527.80 = 86,732.76 : x
  2. Step 2: Convert to fraction form
    158,352.96/218,527.80 = 86,732.76/x
  3. Step 3: Cross multiply
    158,352.96x = 218,527.80 × 86,732.76
  4. Step 4: Simplify right side
    158,352.96x = 18,953,519,230.73
  5. Step 5: Solve for x
    x = 18,953,519,230.73/158,352.96
  6. Step 6: Final answer
    x = 119,691.60

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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.