Home / 131,424.60-197,171.48-68,248.92

Finding the Fourth Proportional to 131,424.60, 197,171.48 and 68,248.92

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Solution

The fourth proportional to 131,424.60, 197,171.48 and 68,248.92 is: 102,391.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,424.60 : 197,171.48 = 68,248.92 : x
  2. Step 2: Convert to fraction form
    131,424.60/197,171.48 = 68,248.92/x
  3. Step 3: Cross multiply
    131,424.60x = 197,171.48 × 68,248.92
  4. Step 4: Simplify right side
    131,424.60x = 13,456,740,564.80
  5. Step 5: Solve for x
    x = 13,456,740,564.80/131,424.60
  6. Step 6: Final answer
    x = 102,391.34

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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.