Home / 137,907.28-206,865.40-38,074.96

Finding the Fourth Proportional to 137,907.28, 206,865.40 and 38,074.96

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Solution

The fourth proportional to 137,907.28, 206,865.40 and 38,074.96 is: 57,113.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,907.28 : 206,865.40 = 38,074.96 : x
  2. Step 2: Convert to fraction form
    137,907.28/206,865.40 = 38,074.96/x
  3. Step 3: Cross multiply
    137,907.28x = 206,865.40 × 38,074.96
  4. Step 4: Simplify right side
    137,907.28x = 7,876,391,830.38
  5. Step 5: Solve for x
    x = 7,876,391,830.38/137,907.28
  6. Step 6: Final answer
    x = 57,113.68

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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.