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Finding the Fourth Proportional to 148,229.58, 204,554.79 and 81,161.58

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Solution

The fourth proportional to 148,229.58, 204,554.79 and 81,161.58 is: 112,001.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,229.58 : 204,554.79 = 81,161.58 : x
  2. Step 2: Convert to fraction form
    148,229.58/204,554.79 = 81,161.58/x
  3. Step 3: Cross multiply
    148,229.58x = 204,554.79 × 81,161.58
  4. Step 4: Simplify right side
    148,229.58x = 16,601,989,952.97
  5. Step 5: Solve for x
    x = 16,601,989,952.97/148,229.58
  6. Step 6: Final answer
    x = 112,001.87

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1.5x scale

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.