Home / 141,851.25-195,754.73-78,190.41

Finding the Fourth Proportional to 141,851.25, 195,754.73 and 78,190.41

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Solution

The fourth proportional to 141,851.25, 195,754.73 and 78,190.41 is: 107,902.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,851.25 : 195,754.73 = 78,190.41 : x
  2. Step 2: Convert to fraction form
    141,851.25/195,754.73 = 78,190.41/x
  3. Step 3: Cross multiply
    141,851.25x = 195,754.73 × 78,190.41
  4. Step 4: Simplify right side
    141,851.25x = 15,306,142,941.27
  5. Step 5: Solve for x
    x = 15,306,142,941.27/141,851.25
  6. Step 6: Final answer
    x = 107,902.77

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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.