Home / 141,407.11-195,136.83-77,744.42

Finding the Fourth Proportional to 141,407.11, 195,136.83 and 77,744.42

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Solution

The fourth proportional to 141,407.11, 195,136.83 and 77,744.42 is: 107,284.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,407.11 : 195,136.83 = 77,744.42 : x
  2. Step 2: Convert to fraction form
    141,407.11/195,136.83 = 77,744.42/x
  3. Step 3: Cross multiply
    141,407.11x = 195,136.83 × 77,744.42
  4. Step 4: Simplify right side
    141,407.11x = 15,170,799,280.27
  5. Step 5: Solve for x
    x = 15,170,799,280.27/141,407.11
  6. Step 6: Final answer
    x = 107,284.56

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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.