Home / 148,919.28-205,510.18-80,936.26

Finding the Fourth Proportional to 148,919.28, 205,510.18 and 80,936.26

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Solution

The fourth proportional to 148,919.28, 205,510.18 and 80,936.26 is: 111,692.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,919.28 : 205,510.18 = 80,936.26 : x
  2. Step 2: Convert to fraction form
    148,919.28/205,510.18 = 80,936.26/x
  3. Step 3: Cross multiply
    148,919.28x = 205,510.18 × 80,936.26
  4. Step 4: Simplify right side
    148,919.28x = 16,633,225,361.13
  5. Step 5: Solve for x
    x = 16,633,225,361.13/148,919.28
  6. Step 6: Final answer
    x = 111,692.89

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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.