Home / 141,817.56-195,707.25-78,155.43

Finding the Fourth Proportional to 141,817.56, 195,707.25 and 78,155.43

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Solution

The fourth proportional to 141,817.56, 195,707.25 and 78,155.43 is: 107,853.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,817.56 : 195,707.25 = 78,155.43 : x
  2. Step 2: Convert to fraction form
    141,817.56/195,707.25 = 78,155.43/x
  3. Step 3: Cross multiply
    141,817.56x = 195,707.25 × 78,155.43
  4. Step 4: Simplify right side
    141,817.56x = 15,295,584,277.87
  5. Step 5: Solve for x
    x = 15,295,584,277.87/141,817.56
  6. Step 6: Final answer
    x = 107,853.95

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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.