Home / 141,848.06-195,747.90-78,191.78

Finding the Fourth Proportional to 141,848.06, 195,747.90 and 78,191.78

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Solution

The fourth proportional to 141,848.06, 195,747.90 and 78,191.78 is: 107,903.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,848.06 : 195,747.90 = 78,191.78 : x
  2. Step 2: Convert to fraction form
    141,848.06/195,747.90 = 78,191.78/x
  3. Step 3: Cross multiply
    141,848.06x = 195,747.90 × 78,191.78
  4. Step 4: Simplify right side
    141,848.06x = 15,305,876,732.26
  5. Step 5: Solve for x
    x = 15,305,876,732.26/141,848.06
  6. Step 6: Final answer
    x = 107,903.32

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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.