Home / 120,581.10-180,769.59-45,659.95

Finding the Fourth Proportional to 120,581.10, 180,769.59 and 45,659.95

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Solution

The fourth proportional to 120,581.10, 180,769.59 and 45,659.95 is: 68,451.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,581.10 : 180,769.59 = 45,659.95 : x
  2. Step 2: Convert to fraction form
    120,581.10/180,769.59 = 45,659.95/x
  3. Step 3: Cross multiply
    120,581.10x = 180,769.59 × 45,659.95
  4. Step 4: Simplify right side
    120,581.10x = 8,253,929,989.00
  5. Step 5: Solve for x
    x = 8,253,929,989.00/120,581.10
  6. Step 6: Final answer
    x = 68,451.27

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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.