Home / 131,464.92-197,247.06-78,911.04

Finding the Fourth Proportional to 131,464.92, 197,247.06 and 78,911.04

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Solution

The fourth proportional to 131,464.92, 197,247.06 and 78,911.04 is: 118,396.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,464.92 : 197,247.06 = 78,911.04 : x
  2. Step 2: Convert to fraction form
    131,464.92/197,247.06 = 78,911.04/x
  3. Step 3: Cross multiply
    131,464.92x = 197,247.06 × 78,911.04
  4. Step 4: Simplify right side
    131,464.92x = 15,564,970,641.54
  5. Step 5: Solve for x
    x = 15,564,970,641.54/131,464.92
  6. Step 6: Final answer
    x = 118,396.38

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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.