Home / 103,932.06-155,939.28-54,043.62

Finding the Fourth Proportional to 103,932.06, 155,939.28 and 54,043.62

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Solution

The fourth proportional to 103,932.06, 155,939.28 and 54,043.62 is: 81,086.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,932.06 : 155,939.28 = 54,043.62 : x
  2. Step 2: Convert to fraction form
    103,932.06/155,939.28 = 54,043.62/x
  3. Step 3: Cross multiply
    103,932.06x = 155,939.28 × 54,043.62
  4. Step 4: Simplify right side
    103,932.06x = 8,427,523,191.39
  5. Step 5: Solve for x
    x = 8,427,523,191.39/103,932.06
  6. Step 6: Final answer
    x = 81,086.85

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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.