Home / 126,721.20-190,081.80-125,846.40

Finding the Fourth Proportional to 126,721.20, 190,081.80 and 125,846.40

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Solution

The fourth proportional to 126,721.20, 190,081.80 and 125,846.40 is: 188,769.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,721.20 : 190,081.80 = 125,846.40 : x
  2. Step 2: Convert to fraction form
    126,721.20/190,081.80 = 125,846.40/x
  3. Step 3: Cross multiply
    126,721.20x = 190,081.80 × 125,846.40
  4. Step 4: Simplify right side
    126,721.20x = 23,921,110,235.52
  5. Step 5: Solve for x
    x = 23,921,110,235.52/126,721.20
  6. Step 6: Final answer
    x = 188,769.60

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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.