Home / 141,766.74-195,666.44-81,378.21

Finding the Fourth Proportional to 141,766.74, 195,666.44 and 81,378.21

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Solution

The fourth proportional to 141,766.74, 195,666.44 and 81,378.21 is: 112,318.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,766.74 : 195,666.44 = 81,378.21 : x
  2. Step 2: Convert to fraction form
    141,766.74/195,666.44 = 81,378.21/x
  3. Step 3: Cross multiply
    141,766.74x = 195,666.44 × 81,378.21
  4. Step 4: Simplify right side
    141,766.74x = 15,922,984,237.38
  5. Step 5: Solve for x
    x = 15,922,984,237.38/141,766.74
  6. Step 6: Final answer
    x = 112,318.19

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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.