Home / 98,001.76-135,177.92-77,826.64

Finding the Fourth Proportional to 98,001.76, 135,177.92 and 77,826.64

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Solution

The fourth proportional to 98,001.76, 135,177.92 and 77,826.64 is: 107,349.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,001.76 : 135,177.92 = 77,826.64 : x
  2. Step 2: Convert to fraction form
    98,001.76/135,177.92 = 77,826.64/x
  3. Step 3: Cross multiply
    98,001.76x = 135,177.92 × 77,826.64
  4. Step 4: Simplify right side
    98,001.76x = 10,520,442,926.66
  5. Step 5: Solve for x
    x = 10,520,442,926.66/98,001.76
  6. Step 6: Final answer
    x = 107,349.53

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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.