Home / 165,218.85-227,999.19-89,766.81

Finding the Fourth Proportional to 165,218.85, 227,999.19 and 89,766.81

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Solution

The fourth proportional to 165,218.85, 227,999.19 and 89,766.81 is: 123,876.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,218.85 : 227,999.19 = 89,766.81 : x
  2. Step 2: Convert to fraction form
    165,218.85/227,999.19 = 89,766.81/x
  3. Step 3: Cross multiply
    165,218.85x = 227,999.19 × 89,766.81
  4. Step 4: Simplify right side
    165,218.85x = 20,466,759,968.88
  5. Step 5: Solve for x
    x = 20,466,759,968.88/165,218.85
  6. Step 6: Final answer
    x = 123,876.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.