Home / 141,766.99-195,666.78-81,378.46

Finding the Fourth Proportional to 141,766.99, 195,666.78 and 81,378.46

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Solution

The fourth proportional to 141,766.99, 195,666.78 and 81,378.46 is: 112,318.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,766.99 : 195,666.78 = 81,378.46 : x
  2. Step 2: Convert to fraction form
    141,766.99/195,666.78 = 81,378.46/x
  3. Step 3: Cross multiply
    141,766.99x = 195,666.78 × 81,378.46
  4. Step 4: Simplify right side
    141,766.99x = 15,923,061,229.56
  5. Step 5: Solve for x
    x = 15,923,061,229.56/141,766.99
  6. Step 6: Final answer
    x = 112,318.54

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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.