Home / 106,543.80-159,815.70-87,844.95

Finding the Fourth Proportional to 106,543.80, 159,815.70 and 87,844.95

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Solution

The fourth proportional to 106,543.80, 159,815.70 and 87,844.95 is: 131,767.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,543.80 : 159,815.70 = 87,844.95 : x
  2. Step 2: Convert to fraction form
    106,543.80/159,815.70 = 87,844.95/x
  3. Step 3: Cross multiply
    106,543.80x = 159,815.70 × 87,844.95
  4. Step 4: Simplify right side
    106,543.80x = 14,039,002,175.72
  5. Step 5: Solve for x
    x = 14,039,002,175.72/106,543.80
  6. Step 6: Final answer
    x = 131,767.43

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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.