Home / 99,727.20-138,335.04-96,370.56

Finding the Fourth Proportional to 99,727.20, 138,335.04 and 96,370.56

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Solution

The fourth proportional to 99,727.20, 138,335.04 and 96,370.56 is: 133,678.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,727.20 : 138,335.04 = 96,370.56 : x
  2. Step 2: Convert to fraction form
    99,727.20/138,335.04 = 96,370.56/x
  3. Step 3: Cross multiply
    99,727.20x = 138,335.04 × 96,370.56
  4. Step 4: Simplify right side
    99,727.20x = 13,331,425,272.42
  5. Step 5: Solve for x
    x = 13,331,425,272.42/99,727.20
  6. Step 6: Final answer
    x = 133,678.93

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.