Home / 137,630.52-206,445.60-90,872.28

Finding the Fourth Proportional to 137,630.52, 206,445.60 and 90,872.28

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Solution

The fourth proportional to 137,630.52, 206,445.60 and 90,872.28 is: 136,308.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,630.52 : 206,445.60 = 90,872.28 : x
  2. Step 2: Convert to fraction form
    137,630.52/206,445.60 = 90,872.28/x
  3. Step 3: Cross multiply
    137,630.52x = 206,445.60 × 90,872.28
  4. Step 4: Simplify right side
    137,630.52x = 18,760,182,367.97
  5. Step 5: Solve for x
    x = 18,760,182,367.97/137,630.52
  6. Step 6: Final answer
    x = 136,308.30

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1.5x scale

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.