Home / 126,350.64-189,640.68-67,235.76

Finding the Fourth Proportional to 126,350.64, 189,640.68 and 67,235.76

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Solution

The fourth proportional to 126,350.64, 189,640.68 and 67,235.76 is: 100,914.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,350.64 : 189,640.68 = 67,235.76 : x
  2. Step 2: Convert to fraction form
    126,350.64/189,640.68 = 67,235.76/x
  3. Step 3: Cross multiply
    126,350.64x = 189,640.68 × 67,235.76
  4. Step 4: Simplify right side
    126,350.64x = 12,750,635,246.72
  5. Step 5: Solve for x
    x = 12,750,635,246.72/126,350.64
  6. Step 6: Final answer
    x = 100,914.69

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1.5x scale

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.