Home / 149,734.38-206,632.03-81,750.77

Finding the Fourth Proportional to 149,734.38, 206,632.03 and 81,750.77

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Solution

The fourth proportional to 149,734.38, 206,632.03 and 81,750.77 is: 112,815.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,734.38 : 206,632.03 = 81,750.77 : x
  2. Step 2: Convert to fraction form
    149,734.38/206,632.03 = 81,750.77/x
  3. Step 3: Cross multiply
    149,734.38x = 206,632.03 × 81,750.77
  4. Step 4: Simplify right side
    149,734.38x = 16,892,327,559.16
  5. Step 5: Solve for x
    x = 16,892,327,559.16/149,734.38
  6. Step 6: Final answer
    x = 112,815.29

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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.