Home / 141,857.73-195,761.55-78,194.16

Finding the Fourth Proportional to 141,857.73, 195,761.55 and 78,194.16

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Solution

The fourth proportional to 141,857.73, 195,761.55 and 78,194.16 is: 107,906.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,857.73 : 195,761.55 = 78,194.16 : x
  2. Step 2: Convert to fraction form
    141,857.73/195,761.55 = 78,194.16/x
  3. Step 3: Cross multiply
    141,857.73x = 195,761.55 × 78,194.16
  4. Step 4: Simplify right side
    141,857.73x = 15,307,409,962.55
  5. Step 5: Solve for x
    x = 15,307,409,962.55/141,857.73
  6. Step 6: Final answer
    x = 107,906.77

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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.