Home / 126,926.70-190,260.45-74,309.10

Finding the Fourth Proportional to 126,926.70, 190,260.45 and 74,309.10

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Solution

The fourth proportional to 126,926.70, 190,260.45 and 74,309.10 is: 111,387.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,926.70 : 190,260.45 = 74,309.10 : x
  2. Step 2: Convert to fraction form
    126,926.70/190,260.45 = 74,309.10/x
  3. Step 3: Cross multiply
    126,926.70x = 190,260.45 × 74,309.10
  4. Step 4: Simplify right side
    126,926.70x = 14,138,082,805.10
  5. Step 5: Solve for x
    x = 14,138,082,805.10/126,926.70
  6. Step 6: Final answer
    x = 111,387.78

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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.