Home / 141,887.82-195,806.70-78,227.90

Finding the Fourth Proportional to 141,887.82, 195,806.70 and 78,227.90

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Solution

The fourth proportional to 141,887.82, 195,806.70 and 78,227.90 is: 107,955.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,887.82 : 195,806.70 = 78,227.90 : x
  2. Step 2: Convert to fraction form
    141,887.82/195,806.70 = 78,227.90/x
  3. Step 3: Cross multiply
    141,887.82x = 195,806.70 × 78,227.90
  4. Step 4: Simplify right side
    141,887.82x = 15,317,546,946.93
  5. Step 5: Solve for x
    x = 15,317,546,946.93/141,887.82
  6. Step 6: Final answer
    x = 107,955.33

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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.