Home / 137,602.08-206,402.88-90,843.96

Finding the Fourth Proportional to 137,602.08, 206,402.88 and 90,843.96

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Solution

The fourth proportional to 137,602.08, 206,402.88 and 90,843.96 is: 136,265.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,602.08 : 206,402.88 = 90,843.96 : x
  2. Step 2: Convert to fraction form
    137,602.08/206,402.88 = 90,843.96/x
  3. Step 3: Cross multiply
    137,602.08x = 206,402.88 × 90,843.96
  4. Step 4: Simplify right side
    137,602.08x = 18,750,454,974.60
  5. Step 5: Solve for x
    x = 18,750,454,974.60/137,602.08
  6. Step 6: Final answer
    x = 136,265.78

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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.