Home / 141,864.73-195,771.21-78,201.16

Finding the Fourth Proportional to 141,864.73, 195,771.21 and 78,201.16

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Solution

The fourth proportional to 141,864.73, 195,771.21 and 78,201.16 is: 107,916.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,864.73 : 195,771.21 = 78,201.16 : x
  2. Step 2: Convert to fraction form
    141,864.73/195,771.21 = 78,201.16/x
  3. Step 3: Cross multiply
    141,864.73x = 195,771.21 × 78,201.16
  4. Step 4: Simplify right side
    141,864.73x = 15,309,535,716.60
  5. Step 5: Solve for x
    x = 15,309,535,716.60/141,864.73
  6. Step 6: Final answer
    x = 107,916.43

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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.