Home / 148,694.09-205,197.98-80,711.03

Finding the Fourth Proportional to 148,694.09, 205,197.98 and 80,711.03

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Solution

The fourth proportional to 148,694.09, 205,197.98 and 80,711.03 is: 111,381.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,694.09 : 205,197.98 = 80,711.03 : x
  2. Step 2: Convert to fraction form
    148,694.09/205,197.98 = 80,711.03/x
  3. Step 3: Cross multiply
    148,694.09x = 205,197.98 × 80,711.03
  4. Step 4: Simplify right side
    148,694.09x = 16,561,738,890.17
  5. Step 5: Solve for x
    x = 16,561,738,890.17/148,694.09
  6. Step 6: Final answer
    x = 111,381.29

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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.