Home / 98,932.10-136,546.92-90,961.70

Finding the Fourth Proportional to 98,932.10, 136,546.92 and 90,961.70

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Solution

The fourth proportional to 98,932.10, 136,546.92 and 90,961.70 is: 125,546.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,932.10 : 136,546.92 = 90,961.70 : x
  2. Step 2: Convert to fraction form
    98,932.10/136,546.92 = 90,961.70/x
  3. Step 3: Cross multiply
    98,932.10x = 136,546.92 × 90,961.70
  4. Step 4: Simplify right side
    98,932.10x = 12,420,539,290.23
  5. Step 5: Solve for x
    x = 12,420,539,290.23/98,932.10
  6. Step 6: Final answer
    x = 125,546.11

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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.