Home / 129,620.20-194,430.30-124,090.60

Finding the Fourth Proportional to 129,620.20, 194,430.30 and 124,090.60

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Solution

The fourth proportional to 129,620.20, 194,430.30 and 124,090.60 is: 186,135.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,620.20 : 194,430.30 = 124,090.60 : x
  2. Step 2: Convert to fraction form
    129,620.20/194,430.30 = 124,090.60/x
  3. Step 3: Cross multiply
    129,620.20x = 194,430.30 × 124,090.60
  4. Step 4: Simplify right side
    129,620.20x = 24,126,972,585.18
  5. Step 5: Solve for x
    x = 24,126,972,585.18/129,620.20
  6. Step 6: Final answer
    x = 186,135.90

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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.