Home / 149,446.50-206,237.19-89,019.69

Finding the Fourth Proportional to 149,446.50, 206,237.19 and 89,019.69

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Solution

The fourth proportional to 149,446.50, 206,237.19 and 89,019.69 is: 122,847.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,446.50 : 206,237.19 = 89,019.69 : x
  2. Step 2: Convert to fraction form
    149,446.50/206,237.19 = 89,019.69/x
  3. Step 3: Cross multiply
    149,446.50x = 206,237.19 × 89,019.69
  4. Step 4: Simplify right side
    149,446.50x = 18,359,170,720.27
  5. Step 5: Solve for x
    x = 18,359,170,720.27/149,446.50
  6. Step 6: Final answer
    x = 122,847.78

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1.5x scale

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.