Home / 141,797.38-195,684.50-78,139.28

Finding the Fourth Proportional to 141,797.38, 195,684.50 and 78,139.28

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Solution

The fourth proportional to 141,797.38, 195,684.50 and 78,139.28 is: 107,834.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,797.38 : 195,684.50 = 78,139.28 : x
  2. Step 2: Convert to fraction form
    141,797.38/195,684.50 = 78,139.28/x
  3. Step 3: Cross multiply
    141,797.38x = 195,684.50 × 78,139.28
  4. Step 4: Simplify right side
    141,797.38x = 15,290,645,937.16
  5. Step 5: Solve for x
    x = 15,290,645,937.16/141,797.38
  6. Step 6: Final answer
    x = 107,834.47

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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.