Home / 106,444.92-159,778.10-78,396.65

Finding the Fourth Proportional to 106,444.92, 159,778.10 and 78,396.65

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Solution

The fourth proportional to 106,444.92, 159,778.10 and 78,396.65 is: 117,676.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,444.92 : 159,778.10 = 78,396.65 : x
  2. Step 2: Convert to fraction form
    106,444.92/159,778.10 = 78,396.65/x
  3. Step 3: Cross multiply
    106,444.92x = 159,778.10 × 78,396.65
  4. Step 4: Simplify right side
    106,444.92x = 12,526,066,592.49
  5. Step 5: Solve for x
    x = 12,526,066,592.49/106,444.92
  6. Step 6: Final answer
    x = 117,676.51

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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.