Home / 131,070.50-180,891.96-80,769.50

Finding the Fourth Proportional to 131,070.50, 180,891.96 and 80,769.50

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Solution

The fourth proportional to 131,070.50, 180,891.96 and 80,769.50 is: 111,470.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,070.50 : 180,891.96 = 80,769.50 : x
  2. Step 2: Convert to fraction form
    131,070.50/180,891.96 = 80,769.50/x
  3. Step 3: Cross multiply
    131,070.50x = 180,891.96 × 80,769.50
  4. Step 4: Simplify right side
    131,070.50x = 14,610,553,163.22
  5. Step 5: Solve for x
    x = 14,610,553,163.22/131,070.50
  6. Step 6: Final answer
    x = 111,470.95

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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.