Home / 120,184.28-180,149.30-45,272.02

Finding the Fourth Proportional to 120,184.28, 180,149.30 and 45,272.02

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Solution

The fourth proportional to 120,184.28, 180,149.30 and 45,272.02 is: 67,860.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,184.28 : 180,149.30 = 45,272.02 : x
  2. Step 2: Convert to fraction form
    120,184.28/180,149.30 = 45,272.02/x
  3. Step 3: Cross multiply
    120,184.28x = 180,149.30 × 45,272.02
  4. Step 4: Simplify right side
    120,184.28x = 8,155,722,712.59
  5. Step 5: Solve for x
    x = 8,155,722,712.59/120,184.28
  6. Step 6: Final answer
    x = 67,860.15

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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.