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Finding the Fourth Proportional to 179,645.18, 247,905.02 and 99,072.68

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Solution

The fourth proportional to 179,645.18, 247,905.02 and 99,072.68 is: 136,717.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,645.18 : 247,905.02 = 99,072.68 : x
  2. Step 2: Convert to fraction form
    179,645.18/247,905.02 = 99,072.68/x
  3. Step 3: Cross multiply
    179,645.18x = 247,905.02 × 99,072.68
  4. Step 4: Simplify right side
    179,645.18x = 24,560,613,725.01
  5. Step 5: Solve for x
    x = 24,560,613,725.01/179,645.18
  6. Step 6: Final answer
    x = 136,717.36

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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.