Home / 141,851.21-195,754.67-78,190.38

Finding the Fourth Proportional to 141,851.21, 195,754.67 and 78,190.38

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Solution

The fourth proportional to 141,851.21, 195,754.67 and 78,190.38 is: 107,902.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,851.21 : 195,754.67 = 78,190.38 : x
  2. Step 2: Convert to fraction form
    141,851.21/195,754.67 = 78,190.38/x
  3. Step 3: Cross multiply
    141,851.21x = 195,754.67 × 78,190.38
  4. Step 4: Simplify right side
    141,851.21x = 15,306,131,643.12
  5. Step 5: Solve for x
    x = 15,306,131,643.12/141,851.21
  6. Step 6: Final answer
    x = 107,902.73

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1.5x scale

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.