Home / 149,868.24-206,815.72-81,883.72

Finding the Fourth Proportional to 149,868.24, 206,815.72 and 81,883.72

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Solution

The fourth proportional to 149,868.24, 206,815.72 and 81,883.72 is: 112,998.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,868.24 : 206,815.72 = 81,883.72 : x
  2. Step 2: Convert to fraction form
    149,868.24/206,815.72 = 81,883.72/x
  3. Step 3: Cross multiply
    149,868.24x = 206,815.72 × 81,883.72
  4. Step 4: Simplify right side
    149,868.24x = 16,934,840,508.08
  5. Step 5: Solve for x
    x = 16,934,840,508.08/149,868.24
  6. Step 6: Final answer
    x = 112,998.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.