Home / 80,752.06-120,940.26-77,948.92

Finding the Fourth Proportional to 80,752.06, 120,940.26 and 77,948.92

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Solution

The fourth proportional to 80,752.06, 120,940.26 and 77,948.92 is: 116,742.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,752.06 : 120,940.26 = 77,948.92 : x
  2. Step 2: Convert to fraction form
    80,752.06/120,940.26 = 77,948.92/x
  3. Step 3: Cross multiply
    80,752.06x = 120,940.26 × 77,948.92
  4. Step 4: Simplify right side
    80,752.06x = 9,427,162,651.52
  5. Step 5: Solve for x
    x = 9,427,162,651.52/80,752.06
  6. Step 6: Final answer
    x = 116,742.07

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1.5x scale

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.