Home / 138,692.03-208,043.97-54,470.43

Finding the Fourth Proportional to 138,692.03, 208,043.97 and 54,470.43

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Solution

The fourth proportional to 138,692.03, 208,043.97 and 54,470.43 is: 81,707.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,692.03 : 208,043.97 = 54,470.43 : x
  2. Step 2: Convert to fraction form
    138,692.03/208,043.97 = 54,470.43/x
  3. Step 3: Cross multiply
    138,692.03x = 208,043.97 × 54,470.43
  4. Step 4: Simplify right side
    138,692.03x = 11,332,244,504.81
  5. Step 5: Solve for x
    x = 11,332,244,504.81/138,692.03
  6. Step 6: Final answer
    x = 81,707.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.