Home / 126,373.28-189,504.80-67,194.72

Finding the Fourth Proportional to 126,373.28, 189,504.80 and 67,194.72

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Solution

The fourth proportional to 126,373.28, 189,504.80 and 67,194.72 is: 100,762.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,373.28 : 189,504.80 = 67,194.72 : x
  2. Step 2: Convert to fraction form
    126,373.28/189,504.80 = 67,194.72/x
  3. Step 3: Cross multiply
    126,373.28x = 189,504.80 × 67,194.72
  4. Step 4: Simplify right side
    126,373.28x = 12,733,721,974.66
  5. Step 5: Solve for x
    x = 12,733,721,974.66/126,373.28
  6. Step 6: Final answer
    x = 100,762.77

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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.