Home / 131,789.32-197,388.68-79,089.92

Finding the Fourth Proportional to 131,789.32, 197,388.68 and 79,089.92

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Solution

The fourth proportional to 131,789.32, 197,388.68 and 79,089.92 is: 118,457.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,789.32 : 197,388.68 = 79,089.92 : x
  2. Step 2: Convert to fraction form
    131,789.32/197,388.68 = 79,089.92/x
  3. Step 3: Cross multiply
    131,789.32x = 197,388.68 × 79,089.92
  4. Step 4: Simplify right side
    131,789.32x = 15,611,454,910.11
  5. Step 5: Solve for x
    x = 15,611,454,910.11/131,789.32
  6. Step 6: Final answer
    x = 118,457.66

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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.