Home / 107,015.16-160,375.12-80,690.97

Finding the Fourth Proportional to 107,015.16, 160,375.12 and 80,690.97

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Solution

The fourth proportional to 107,015.16, 160,375.12 and 80,690.97 is: 120,925.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,015.16 : 160,375.12 = 80,690.97 : x
  2. Step 2: Convert to fraction form
    107,015.16/160,375.12 = 80,690.97/x
  3. Step 3: Cross multiply
    107,015.16x = 160,375.12 × 80,690.97
  4. Step 4: Simplify right side
    107,015.16x = 12,940,823,996.67
  5. Step 5: Solve for x
    x = 12,940,823,996.67/107,015.16
  6. Step 6: Final answer
    x = 120,925.15

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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.