Home / 126,902.80-190,354.20-113,124.70

Finding the Fourth Proportional to 126,902.80, 190,354.20 and 113,124.70

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Solution

The fourth proportional to 126,902.80, 190,354.20 and 113,124.70 is: 169,687.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,902.80 : 190,354.20 = 113,124.70 : x
  2. Step 2: Convert to fraction form
    126,902.80/190,354.20 = 113,124.70/x
  3. Step 3: Cross multiply
    126,902.80x = 190,354.20 × 113,124.70
  4. Step 4: Simplify right side
    126,902.80x = 21,533,761,768.74
  5. Step 5: Solve for x
    x = 21,533,761,768.74/126,902.80
  6. Step 6: Final answer
    x = 169,687.05

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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.