Home / 141,882.72-195,805.40-78,220.37

Finding the Fourth Proportional to 141,882.72, 195,805.40 and 78,220.37

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Solution

The fourth proportional to 141,882.72, 195,805.40 and 78,220.37 is: 107,948.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,882.72 : 195,805.40 = 78,220.37 : x
  2. Step 2: Convert to fraction form
    141,882.72/195,805.40 = 78,220.37/x
  3. Step 3: Cross multiply
    141,882.72x = 195,805.40 × 78,220.37
  4. Step 4: Simplify right side
    141,882.72x = 15,315,970,836.00
  5. Step 5: Solve for x
    x = 15,315,970,836.00/141,882.72
  6. Step 6: Final answer
    x = 107,948.11

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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.