Home / 99,717.70-137,330.49-97,540.42

Finding the Fourth Proportional to 99,717.70, 137,330.49 and 97,540.42

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Solution

The fourth proportional to 99,717.70, 137,330.49 and 97,540.42 is: 134,331.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,717.70 : 137,330.49 = 97,540.42 : x
  2. Step 2: Convert to fraction form
    99,717.70/137,330.49 = 97,540.42/x
  3. Step 3: Cross multiply
    99,717.70x = 137,330.49 × 97,540.42
  4. Step 4: Simplify right side
    99,717.70x = 13,395,273,673.41
  5. Step 5: Solve for x
    x = 13,395,273,673.41/99,717.70
  6. Step 6: Final answer
    x = 134,331.96

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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.