Home / 126,979.20-190,549.80-60,494.40

Finding the Fourth Proportional to 126,979.20, 190,549.80 and 60,494.40

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Solution

The fourth proportional to 126,979.20, 190,549.80 and 60,494.40 is: 90,780.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,979.20 : 190,549.80 = 60,494.40 : x
  2. Step 2: Convert to fraction form
    126,979.20/190,549.80 = 60,494.40/x
  3. Step 3: Cross multiply
    126,979.20x = 190,549.80 × 60,494.40
  4. Step 4: Simplify right side
    126,979.20x = 11,527,195,821.12
  5. Step 5: Solve for x
    x = 11,527,195,821.12/126,979.20
  6. Step 6: Final answer
    x = 90,780.19

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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.