Home / 131,084.57-180,891.72-80,079.47

Finding the Fourth Proportional to 131,084.57, 180,891.72 and 80,079.47

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Solution

The fourth proportional to 131,084.57, 180,891.72 and 80,079.47 is: 110,506.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,084.57 : 180,891.72 = 80,079.47 : x
  2. Step 2: Convert to fraction form
    131,084.57/180,891.72 = 80,079.47/x
  3. Step 3: Cross multiply
    131,084.57x = 180,891.72 × 80,079.47
  4. Step 4: Simplify right side
    131,084.57x = 14,485,712,160.53
  5. Step 5: Solve for x
    x = 14,485,712,160.53/131,084.57
  6. Step 6: Final answer
    x = 110,506.62

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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.