Home / 98,451.73-136,047.30-80,540.20

Finding the Fourth Proportional to 98,451.73, 136,047.30 and 80,540.20

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Solution

The fourth proportional to 98,451.73, 136,047.30 and 80,540.20 is: 111,295.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,451.73 : 136,047.30 = 80,540.20 : x
  2. Step 2: Convert to fraction form
    98,451.73/136,047.30 = 80,540.20/x
  3. Step 3: Cross multiply
    98,451.73x = 136,047.30 × 80,540.20
  4. Step 4: Simplify right side
    98,451.73x = 10,957,276,751.46
  5. Step 5: Solve for x
    x = 10,957,276,751.46/98,451.73
  6. Step 6: Final answer
    x = 111,295.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.