Home / 120,581.20-166,403.28-66,867.04

Finding the Fourth Proportional to 120,581.20, 166,403.28 and 66,867.04

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Solution

The fourth proportional to 120,581.20, 166,403.28 and 66,867.04 is: 92,277.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,581.20 : 166,403.28 = 66,867.04 : x
  2. Step 2: Convert to fraction form
    120,581.20/166,403.28 = 66,867.04/x
  3. Step 3: Cross multiply
    120,581.20x = 166,403.28 × 66,867.04
  4. Step 4: Simplify right side
    120,581.20x = 11,126,894,779.89
  5. Step 5: Solve for x
    x = 11,126,894,779.89/120,581.20
  6. Step 6: Final answer
    x = 92,277.19

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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.