Home / 126,058.20-189,087.30-66,863.40

Finding the Fourth Proportional to 126,058.20, 189,087.30 and 66,863.40

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Solution

The fourth proportional to 126,058.20, 189,087.30 and 66,863.40 is: 100,295.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,058.20 : 189,087.30 = 66,863.40 : x
  2. Step 2: Convert to fraction form
    126,058.20/189,087.30 = 66,863.40/x
  3. Step 3: Cross multiply
    126,058.20x = 189,087.30 × 66,863.40
  4. Step 4: Simplify right side
    126,058.20x = 12,643,019,774.82
  5. Step 5: Solve for x
    x = 12,643,019,774.82/126,058.20
  6. Step 6: Final answer
    x = 100,295.10

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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.