Home / 103,619.72-155,226.19-53,732.43

Finding the Fourth Proportional to 103,619.72, 155,226.19 and 53,732.43

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Solution

The fourth proportional to 103,619.72, 155,226.19 and 53,732.43 is: 80,493.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,619.72 : 155,226.19 = 53,732.43 : x
  2. Step 2: Convert to fraction form
    103,619.72/155,226.19 = 53,732.43/x
  3. Step 3: Cross multiply
    103,619.72x = 155,226.19 × 53,732.43
  4. Step 4: Simplify right side
    103,619.72x = 8,340,680,388.34
  5. Step 5: Solve for x
    x = 8,340,680,388.34/103,619.72
  6. Step 6: Final answer
    x = 80,493.18

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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.