Home / 137,915.10-206,868.53-38,081.39

Finding the Fourth Proportional to 137,915.10, 206,868.53 and 38,081.39

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Solution

The fourth proportional to 137,915.10, 206,868.53 and 38,081.39 is: 57,120.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,915.10 : 206,868.53 = 38,081.39 : x
  2. Step 2: Convert to fraction form
    137,915.10/206,868.53 = 38,081.39/x
  3. Step 3: Cross multiply
    137,915.10x = 206,868.53 × 38,081.39
  4. Step 4: Simplify right side
    137,915.10x = 7,877,839,944.91
  5. Step 5: Solve for x
    x = 7,877,839,944.91/137,915.10
  6. Step 6: Final answer
    x = 57,120.94

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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.