Home / 112,860.44-155,758.55-64,469.61

Finding the Fourth Proportional to 112,860.44, 155,758.55 and 64,469.61

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Solution

The fourth proportional to 112,860.44, 155,758.55 and 64,469.61 is: 88,974.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,860.44 : 155,758.55 = 64,469.61 : x
  2. Step 2: Convert to fraction form
    112,860.44/155,758.55 = 64,469.61/x
  3. Step 3: Cross multiply
    112,860.44x = 155,758.55 × 64,469.61
  4. Step 4: Simplify right side
    112,860.44x = 10,041,692,972.67
  5. Step 5: Solve for x
    x = 10,041,692,972.67/112,860.44
  6. Step 6: Final answer
    x = 88,974.43

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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.