Home / 126,350.28-189,554.58-67,242.96

Finding the Fourth Proportional to 126,350.28, 189,554.58 and 67,242.96

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Solution

The fourth proportional to 126,350.28, 189,554.58 and 67,242.96 is: 100,879.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,350.28 : 189,554.58 = 67,242.96 : x
  2. Step 2: Convert to fraction form
    126,350.28/189,554.58 = 67,242.96/x
  3. Step 3: Cross multiply
    126,350.28x = 189,554.58 × 67,242.96
  4. Step 4: Simplify right side
    126,350.28x = 12,746,211,040.76
  5. Step 5: Solve for x
    x = 12,746,211,040.76/126,350.28
  6. Step 6: Final answer
    x = 100,879.96

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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.