Home / 126,062.20-189,093.30-66,867.40

Finding the Fourth Proportional to 126,062.20, 189,093.30 and 66,867.40

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Solution

The fourth proportional to 126,062.20, 189,093.30 and 66,867.40 is: 100,301.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,062.20 : 189,093.30 = 66,867.40 : x
  2. Step 2: Convert to fraction form
    126,062.20/189,093.30 = 66,867.40/x
  3. Step 3: Cross multiply
    126,062.20x = 189,093.30 × 66,867.40
  4. Step 4: Simplify right side
    126,062.20x = 12,644,177,328.42
  5. Step 5: Solve for x
    x = 12,644,177,328.42/126,062.20
  6. Step 6: Final answer
    x = 100,301.10

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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.