Home / 126,382.90-189,553.72-42,143.76

Finding the Fourth Proportional to 126,382.90, 189,553.72 and 42,143.76

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Solution

The fourth proportional to 126,382.90, 189,553.72 and 42,143.76 is: 63,208.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,382.90 : 189,553.72 = 42,143.76 : x
  2. Step 2: Convert to fraction form
    126,382.90/189,553.72 = 42,143.76/x
  3. Step 3: Cross multiply
    126,382.90x = 189,553.72 × 42,143.76
  4. Step 4: Simplify right side
    126,382.90x = 7,988,506,456.45
  5. Step 5: Solve for x
    x = 7,988,506,456.45/126,382.90
  6. Step 6: Final answer
    x = 63,208.76

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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.