Home / 149,523.15-206,346.89-81,545.72

Finding the Fourth Proportional to 149,523.15, 206,346.89 and 81,545.72

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Solution

The fourth proportional to 149,523.15, 206,346.89 and 81,545.72 is: 112,535.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,523.15 : 206,346.89 = 81,545.72 : x
  2. Step 2: Convert to fraction form
    149,523.15/206,346.89 = 81,545.72/x
  3. Step 3: Cross multiply
    149,523.15x = 206,346.89 × 81,545.72
  4. Step 4: Simplify right side
    149,523.15x = 16,826,705,660.74
  5. Step 5: Solve for x
    x = 16,826,705,660.74/149,523.15
  6. Step 6: Final answer
    x = 112,535.79

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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.