Home / 137,865.22-206,827.28-47,910.78

Finding the Fourth Proportional to 137,865.22, 206,827.28 and 47,910.78

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Solution

The fourth proportional to 137,865.22, 206,827.28 and 47,910.78 is: 71,876.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,865.22 : 206,827.28 = 47,910.78 : x
  2. Step 2: Convert to fraction form
    137,865.22/206,827.28 = 47,910.78/x
  3. Step 3: Cross multiply
    137,865.22x = 206,827.28 × 47,910.78
  4. Step 4: Simplify right side
    137,865.22x = 9,909,256,310.08
  5. Step 5: Solve for x
    x = 9,909,256,310.08/137,865.22
  6. Step 6: Final answer
    x = 71,876.40

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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.