Home / 345,168.15-517,787.55-132,115.07

Finding the Fourth Proportional to 345,168.15, 517,787.55 and 132,115.07

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Solution

The fourth proportional to 345,168.15, 517,787.55 and 132,115.07 is: 198,186.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,168.15 : 517,787.55 = 132,115.07 : x
  2. Step 2: Convert to fraction form
    345,168.15/517,787.55 = 132,115.07/x
  3. Step 3: Cross multiply
    345,168.15x = 517,787.55 × 132,115.07
  4. Step 4: Simplify right side
    345,168.15x = 68,407,535,824.44
  5. Step 5: Solve for x
    x = 68,407,535,824.44/345,168.15
  6. Step 6: Final answer
    x = 198,186.12

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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.