Home / 98,151.06-135,451.80-55,138.15

Finding the Fourth Proportional to 98,151.06, 135,451.80 and 55,138.15

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Solution

The fourth proportional to 98,151.06, 135,451.80 and 55,138.15 is: 76,092.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,151.06 : 135,451.80 = 55,138.15 : x
  2. Step 2: Convert to fraction form
    98,151.06/135,451.80 = 55,138.15/x
  3. Step 3: Cross multiply
    98,151.06x = 135,451.80 × 55,138.15
  4. Step 4: Simplify right side
    98,151.06x = 7,468,560,713.22
  5. Step 5: Solve for x
    x = 7,468,560,713.22/98,151.06
  6. Step 6: Final answer
    x = 76,092.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.