Home / 148,668.27-205,163.70-80,685.84

Finding the Fourth Proportional to 148,668.27, 205,163.70 and 80,685.84

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Solution

The fourth proportional to 148,668.27, 205,163.70 and 80,685.84 is: 111,347.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,668.27 : 205,163.70 = 80,685.84 : x
  2. Step 2: Convert to fraction form
    148,668.27/205,163.70 = 80,685.84/x
  3. Step 3: Cross multiply
    148,668.27x = 205,163.70 × 80,685.84
  4. Step 4: Simplify right side
    148,668.27x = 16,553,805,472.01
  5. Step 5: Solve for x
    x = 16,553,805,472.01/148,668.27
  6. Step 6: Final answer
    x = 111,347.27

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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.