Home / 126,719.28-174,803.61-81,404.39

Finding the Fourth Proportional to 126,719.28, 174,803.61 and 81,404.39

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Solution

The fourth proportional to 126,719.28, 174,803.61 and 81,404.39 is: 112,293.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,719.28 : 174,803.61 = 81,404.39 : x
  2. Step 2: Convert to fraction form
    126,719.28/174,803.61 = 81,404.39/x
  3. Step 3: Cross multiply
    126,719.28x = 174,803.61 × 81,404.39
  4. Step 4: Simplify right side
    126,719.28x = 14,229,780,367.83
  5. Step 5: Solve for x
    x = 14,229,780,367.83/126,719.28
  6. Step 6: Final answer
    x = 112,293.73

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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.