Home / 126,891.96-190,327.14-51,990.72

Finding the Fourth Proportional to 126,891.96, 190,327.14 and 51,990.72

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Solution

The fourth proportional to 126,891.96, 190,327.14 and 51,990.72 is: 77,981.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,891.96 : 190,327.14 = 51,990.72 : x
  2. Step 2: Convert to fraction form
    126,891.96/190,327.14 = 51,990.72/x
  3. Step 3: Cross multiply
    126,891.96x = 190,327.14 × 51,990.72
  4. Step 4: Simplify right side
    126,891.96x = 9,895,245,044.14
  5. Step 5: Solve for x
    x = 9,895,245,044.14/126,891.96
  6. Step 6: Final answer
    x = 77,981.65

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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.