Home / 126,644.20-189,966.30-125,769.40

Finding the Fourth Proportional to 126,644.20, 189,966.30 and 125,769.40

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Solution

The fourth proportional to 126,644.20, 189,966.30 and 125,769.40 is: 188,654.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,644.20 : 189,966.30 = 125,769.40 : x
  2. Step 2: Convert to fraction form
    126,644.20/189,966.30 = 125,769.40/x
  3. Step 3: Cross multiply
    126,644.20x = 189,966.30 × 125,769.40
  4. Step 4: Simplify right side
    126,644.20x = 23,891,947,571.22
  5. Step 5: Solve for x
    x = 23,891,947,571.22/126,644.20
  6. Step 6: Final answer
    x = 188,654.10

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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.