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Finding the Fourth Proportional to 136,294.80, 188,086.81 and 75,864.14

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Solution

The fourth proportional to 136,294.80, 188,086.81 and 75,864.14 is: 104,692.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,294.80 : 188,086.81 = 75,864.14 : x
  2. Step 2: Convert to fraction form
    136,294.80/188,086.81 = 75,864.14/x
  3. Step 3: Cross multiply
    136,294.80x = 188,086.81 × 75,864.14
  4. Step 4: Simplify right side
    136,294.80x = 14,269,044,085.99
  5. Step 5: Solve for x
    x = 14,269,044,085.99/136,294.80
  6. Step 6: Final answer
    x = 104,692.51

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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.