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Finding the Fourth Proportional to 148,793, 205,347.01 and 84,273.72

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Solution

The fourth proportional to 148,793, 205,347.01 and 84,273.72 is: 116,304.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,793 : 205,347.01 = 84,273.72 : x
  2. Step 2: Convert to fraction form
    148,793/205,347.01 = 84,273.72/x
  3. Step 3: Cross multiply
    148,793x = 205,347.01 × 84,273.72
  4. Step 4: Simplify right side
    148,793x = 17,305,354,975.47
  5. Step 5: Solve for x
    x = 17,305,354,975.47/148,793
  6. Step 6: Final answer
    x = 116,304.90

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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.