Home / 126,348.64-189,637.68-67,233.76

Finding the Fourth Proportional to 126,348.64, 189,637.68 and 67,233.76

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Solution

The fourth proportional to 126,348.64, 189,637.68 and 67,233.76 is: 100,911.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,348.64 : 189,637.68 = 67,233.76 : x
  2. Step 2: Convert to fraction form
    126,348.64/189,637.68 = 67,233.76/x
  3. Step 3: Cross multiply
    126,348.64x = 189,637.68 × 67,233.76
  4. Step 4: Simplify right side
    126,348.64x = 12,750,054,264.08
  5. Step 5: Solve for x
    x = 12,750,054,264.08/126,348.64
  6. Step 6: Final answer
    x = 100,911.69

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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.