Home / 132,337.56-182,605.28-78,621.20

Finding the Fourth Proportional to 132,337.56, 182,605.28 and 78,621.20

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Solution

The fourth proportional to 132,337.56, 182,605.28 and 78,621.20 is: 108,485.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,337.56 : 182,605.28 = 78,621.20 : x
  2. Step 2: Convert to fraction form
    132,337.56/182,605.28 = 78,621.20/x
  3. Step 3: Cross multiply
    132,337.56x = 182,605.28 × 78,621.20
  4. Step 4: Simplify right side
    132,337.56x = 14,356,644,933.80
  5. Step 5: Solve for x
    x = 14,356,644,933.80/132,337.56
  6. Step 6: Final answer
    x = 108,485.04

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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.