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Finding the Fourth Proportional to 99,179, 136,867.02 and 54,467

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Solution

The fourth proportional to 99,179, 136,867.02 and 54,467 is: 75,164.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,179 : 136,867.02 = 54,467 : x
  2. Step 2: Convert to fraction form
    99,179/136,867.02 = 54,467/x
  3. Step 3: Cross multiply
    99,179x = 136,867.02 × 54,467
  4. Step 4: Simplify right side
    99,179x = 7,454,735,978.34
  5. Step 5: Solve for x
    x = 7,454,735,978.34/99,179
  6. Step 6: Final answer
    x = 75,164.46

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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.