Home / 131,344.96-197,309.04-81,461.92

Finding the Fourth Proportional to 131,344.96, 197,309.04 and 81,461.92

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Solution

The fourth proportional to 131,344.96, 197,309.04 and 81,461.92 is: 122,373.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,344.96 : 197,309.04 = 81,461.92 : x
  2. Step 2: Convert to fraction form
    131,344.96/197,309.04 = 81,461.92/x
  3. Step 3: Cross multiply
    131,344.96x = 197,309.04 × 81,461.92
  4. Step 4: Simplify right side
    131,344.96x = 16,073,173,231.76
  5. Step 5: Solve for x
    x = 16,073,173,231.76/131,344.96
  6. Step 6: Final answer
    x = 122,373.73

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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.