Home / 131,716.20-197,444.70-65,166.60

Finding the Fourth Proportional to 131,716.20, 197,444.70 and 65,166.60

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Solution

The fourth proportional to 131,716.20, 197,444.70 and 65,166.60 is: 97,685.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,716.20 : 197,444.70 = 65,166.60 : x
  2. Step 2: Convert to fraction form
    131,716.20/197,444.70 = 65,166.60/x
  3. Step 3: Cross multiply
    131,716.20x = 197,444.70 × 65,166.60
  4. Step 4: Simplify right side
    131,716.20x = 12,866,799,787.02
  5. Step 5: Solve for x
    x = 12,866,799,787.02/131,716.20
  6. Step 6: Final answer
    x = 97,685.78

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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.