Home / 112,855.75-169,234.41-42,685.85

Finding the Fourth Proportional to 112,855.75, 169,234.41 and 42,685.85

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Solution

The fourth proportional to 112,855.75, 169,234.41 and 42,685.85 is: 64,010.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,855.75 : 169,234.41 = 42,685.85 : x
  2. Step 2: Convert to fraction form
    112,855.75/169,234.41 = 42,685.85/x
  3. Step 3: Cross multiply
    112,855.75x = 169,234.41 × 42,685.85
  4. Step 4: Simplify right side
    112,855.75x = 7,223,914,903.11
  5. Step 5: Solve for x
    x = 7,223,914,903.11/112,855.75
  6. Step 6: Final answer
    x = 64,010.16

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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.