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Finding the Fourth Proportional to 167,644.72, 231,338.11 and 99,658.18

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Solution

The fourth proportional to 167,644.72, 231,338.11 and 99,658.18 is: 137,521.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,644.72 : 231,338.11 = 99,658.18 : x
  2. Step 2: Convert to fraction form
    167,644.72/231,338.11 = 99,658.18/x
  3. Step 3: Cross multiply
    167,644.72x = 231,338.11 × 99,658.18
  4. Step 4: Simplify right side
    167,644.72x = 23,054,733,352.26
  5. Step 5: Solve for x
    x = 23,054,733,352.26/167,644.72
  6. Step 6: Final answer
    x = 137,521.38

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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.