Home / 179,128.68-268,753.77-79,275.12

Finding the Fourth Proportional to 179,128.68, 268,753.77 and 79,275.12

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Solution

The fourth proportional to 179,128.68, 268,753.77 and 79,275.12 is: 118,939.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,128.68 : 268,753.77 = 79,275.12 : x
  2. Step 2: Convert to fraction form
    179,128.68/268,753.77 = 79,275.12/x
  3. Step 3: Cross multiply
    179,128.68x = 268,753.77 × 79,275.12
  4. Step 4: Simplify right side
    179,128.68x = 21,305,487,367.20
  5. Step 5: Solve for x
    x = 21,305,487,367.20/179,128.68
  6. Step 6: Final answer
    x = 118,939.57

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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.