Home / 141,918.76-195,847.77-78,260.59

Finding the Fourth Proportional to 141,918.76, 195,847.77 and 78,260.59

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Solution

The fourth proportional to 141,918.76, 195,847.77 and 78,260.59 is: 107,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,918.76 : 195,847.77 = 78,260.59 : x
  2. Step 2: Convert to fraction form
    141,918.76/195,847.77 = 78,260.59/x
  3. Step 3: Cross multiply
    141,918.76x = 195,847.77 × 78,260.59
  4. Step 4: Simplify right side
    141,918.76x = 15,327,162,030.38
  5. Step 5: Solve for x
    x = 15,327,162,030.38/141,918.76
  6. Step 6: Final answer
    x = 107,999.55

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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.