Home / 126,119.40-189,178.41-54,061.70

Finding the Fourth Proportional to 126,119.40, 189,178.41 and 54,061.70

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Solution

The fourth proportional to 126,119.40, 189,178.41 and 54,061.70 is: 81,092.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,119.40 : 189,178.41 = 54,061.70 : x
  2. Step 2: Convert to fraction form
    126,119.40/189,178.41 = 54,061.70/x
  3. Step 3: Cross multiply
    126,119.40x = 189,178.41 × 54,061.70
  4. Step 4: Simplify right side
    126,119.40x = 10,227,306,059.45
  5. Step 5: Solve for x
    x = 10,227,306,059.45/126,119.40
  6. Step 6: Final answer
    x = 81,092.25

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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.