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Finding the Fourth Proportional to 103,732.80, 155,599.20 and 92,579.10

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Solution

The fourth proportional to 103,732.80, 155,599.20 and 92,579.10 is: 138,868.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,732.80 : 155,599.20 = 92,579.10 : x
  2. Step 2: Convert to fraction form
    103,732.80/155,599.20 = 92,579.10/x
  3. Step 3: Cross multiply
    103,732.80x = 155,599.20 × 92,579.10
  4. Step 4: Simplify right side
    103,732.80x = 14,405,233,896.72
  5. Step 5: Solve for x
    x = 14,405,233,896.72/103,732.80
  6. Step 6: Final answer
    x = 138,868.65

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Similar ratio
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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.