Home / 131,788.32-197,387.18-79,088.92

Finding the Fourth Proportional to 131,788.32, 197,387.18 and 79,088.92

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Solution

The fourth proportional to 131,788.32, 197,387.18 and 79,088.92 is: 118,456.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,788.32 : 197,387.18 = 79,088.92 : x
  2. Step 2: Convert to fraction form
    131,788.32/197,387.18 = 79,088.92/x
  3. Step 3: Cross multiply
    131,788.32x = 197,387.18 × 79,088.92
  4. Step 4: Simplify right side
    131,788.32x = 15,611,138,888.05
  5. Step 5: Solve for x
    x = 15,611,138,888.05/131,788.32
  6. Step 6: Final answer
    x = 118,456.16

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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.