Home / 141,814.28-195,707.79-78,156.17

Finding the Fourth Proportional to 141,814.28, 195,707.79 and 78,156.17

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Solution

The fourth proportional to 141,814.28, 195,707.79 and 78,156.17 is: 107,857.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,814.28 : 195,707.79 = 78,156.17 : x
  2. Step 2: Convert to fraction form
    141,814.28/195,707.79 = 78,156.17/x
  3. Step 3: Cross multiply
    141,814.28x = 195,707.79 × 78,156.17
  4. Step 4: Simplify right side
    141,814.28x = 15,295,770,327.03
  5. Step 5: Solve for x
    x = 15,295,770,327.03/141,814.28
  6. Step 6: Final answer
    x = 107,857.76

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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.