Home / 121,433.10-182,149.65-112,101.90

Finding the Fourth Proportional to 121,433.10, 182,149.65 and 112,101.90

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Solution

The fourth proportional to 121,433.10, 182,149.65 and 112,101.90 is: 168,152.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,433.10 : 182,149.65 = 112,101.90 : x
  2. Step 2: Convert to fraction form
    121,433.10/182,149.65 = 112,101.90/x
  3. Step 3: Cross multiply
    121,433.10x = 182,149.65 × 112,101.90
  4. Step 4: Simplify right side
    121,433.10x = 20,419,321,849.34
  5. Step 5: Solve for x
    x = 20,419,321,849.34/121,433.10
  6. Step 6: Final answer
    x = 168,152.85

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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.