Home / 137,915.16-206,872.78-38,072.04

Finding the Fourth Proportional to 137,915.16, 206,872.78 and 38,072.04

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Solution

The fourth proportional to 137,915.16, 206,872.78 and 38,072.04 is: 57,108.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,915.16 : 206,872.78 = 38,072.04 : x
  2. Step 2: Convert to fraction form
    137,915.16/206,872.78 = 38,072.04/x
  3. Step 3: Cross multiply
    137,915.16x = 206,872.78 × 38,072.04
  4. Step 4: Simplify right side
    137,915.16x = 7,876,068,755.07
  5. Step 5: Solve for x
    x = 7,876,068,755.07/137,915.16
  6. Step 6: Final answer
    x = 57,108.07

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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.