Home / 126,934.80-190,402.20-121,102.80

Finding the Fourth Proportional to 126,934.80, 190,402.20 and 121,102.80

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Solution

The fourth proportional to 126,934.80, 190,402.20 and 121,102.80 is: 181,654.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,934.80 : 190,402.20 = 121,102.80 : x
  2. Step 2: Convert to fraction form
    126,934.80/190,402.20 = 121,102.80/x
  3. Step 3: Cross multiply
    126,934.80x = 190,402.20 × 121,102.80
  4. Step 4: Simplify right side
    126,934.80x = 23,058,239,546.16
  5. Step 5: Solve for x
    x = 23,058,239,546.16/126,934.80
  6. Step 6: Final answer
    x = 181,654.20

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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.