Home / 115,367.52-173,158.20-71,080.80

Finding the Fourth Proportional to 115,367.52, 173,158.20 and 71,080.80

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Solution

The fourth proportional to 115,367.52, 173,158.20 and 71,080.80 is: 106,687.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,367.52 : 173,158.20 = 71,080.80 : x
  2. Step 2: Convert to fraction form
    115,367.52/173,158.20 = 71,080.80/x
  3. Step 3: Cross multiply
    115,367.52x = 173,158.20 × 71,080.80
  4. Step 4: Simplify right side
    115,367.52x = 12,308,223,382.56
  5. Step 5: Solve for x
    x = 12,308,223,382.56/115,367.52
  6. Step 6: Final answer
    x = 106,687.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.