Home / 177,780.60-266,282.10-138,025.80

Finding the Fourth Proportional to 177,780.60, 266,282.10 and 138,025.80

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Solution

The fourth proportional to 177,780.60, 266,282.10 and 138,025.80 is: 206,736.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,780.60 : 266,282.10 = 138,025.80 : x
  2. Step 2: Convert to fraction form
    177,780.60/266,282.10 = 138,025.80/x
  3. Step 3: Cross multiply
    177,780.60x = 266,282.10 × 138,025.80
  4. Step 4: Simplify right side
    177,780.60x = 36,753,799,878.18
  5. Step 5: Solve for x
    x = 36,753,799,878.18/177,780.60
  6. Step 6: Final answer
    x = 206,736.84

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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.