Home / 141,902.40-195,821.24-78,240.26

Finding the Fourth Proportional to 141,902.40, 195,821.24 and 78,240.26

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Solution

The fourth proportional to 141,902.40, 195,821.24 and 78,240.26 is: 107,969.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,902.40 : 195,821.24 = 78,240.26 : x
  2. Step 2: Convert to fraction form
    141,902.40/195,821.24 = 78,240.26/x
  3. Step 3: Cross multiply
    141,902.40x = 195,821.24 × 78,240.26
  4. Step 4: Simplify right side
    141,902.40x = 15,321,104,731.12
  5. Step 5: Solve for x
    x = 15,321,104,731.12/141,902.40
  6. Step 6: Final answer
    x = 107,969.31

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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.