Home / 126,344.64-189,631.68-67,229.76

Finding the Fourth Proportional to 126,344.64, 189,631.68 and 67,229.76

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Solution

The fourth proportional to 126,344.64, 189,631.68 and 67,229.76 is: 100,905.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,344.64 : 189,631.68 = 67,229.76 : x
  2. Step 2: Convert to fraction form
    126,344.64/189,631.68 = 67,229.76/x
  3. Step 3: Cross multiply
    126,344.64x = 189,631.68 × 67,229.76
  4. Step 4: Simplify right side
    126,344.64x = 12,748,892,334.80
  5. Step 5: Solve for x
    x = 12,748,892,334.80/126,344.64
  6. Step 6: Final answer
    x = 100,905.68

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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.