Home / 120,500.26-180,862.52-61,380.19

Finding the Fourth Proportional to 120,500.26, 180,862.52 and 61,380.19

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Solution

The fourth proportional to 120,500.26, 180,862.52 and 61,380.19 is: 92,127.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,500.26 : 180,862.52 = 61,380.19 : x
  2. Step 2: Convert to fraction form
    120,500.26/180,862.52 = 61,380.19/x
  3. Step 3: Cross multiply
    120,500.26x = 180,862.52 × 61,380.19
  4. Step 4: Simplify right side
    120,500.26x = 11,101,375,841.48
  5. Step 5: Solve for x
    x = 11,101,375,841.48/120,500.26
  6. Step 6: Final answer
    x = 92,127.40

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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.