Home / 131,092.12-180,836.20-108,296.29

Finding the Fourth Proportional to 131,092.12, 180,836.20 and 108,296.29

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Solution

The fourth proportional to 131,092.12, 180,836.20 and 108,296.29 is: 149,390.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,092.12 : 180,836.20 = 108,296.29 : x
  2. Step 2: Convert to fraction form
    131,092.12/180,836.20 = 108,296.29/x
  3. Step 3: Cross multiply
    131,092.12x = 180,836.20 × 108,296.29
  4. Step 4: Simplify right side
    131,092.12x = 19,583,889,309.95
  5. Step 5: Solve for x
    x = 19,583,889,309.95/131,092.12
  6. Step 6: Final answer
    x = 149,390.28

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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.