Home / 179,720.60-269,543.10-90,890.60

Finding the Fourth Proportional to 179,720.60, 269,543.10 and 90,890.60

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Solution

The fourth proportional to 179,720.60, 269,543.10 and 90,890.60 is: 136,316.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,720.60 : 269,543.10 = 90,890.60 : x
  2. Step 2: Convert to fraction form
    179,720.60/269,543.10 = 90,890.60/x
  3. Step 3: Cross multiply
    179,720.60x = 269,543.10 × 90,890.60
  4. Step 4: Simplify right side
    179,720.60x = 24,498,934,084.86
  5. Step 5: Solve for x
    x = 24,498,934,084.86/179,720.60
  6. Step 6: Final answer
    x = 136,316.78

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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.