Home / 141,838.16-195,745.41-78,175.80

Finding the Fourth Proportional to 141,838.16, 195,745.41 and 78,175.80

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Solution

The fourth proportional to 141,838.16, 195,745.41 and 78,175.80 is: 107,887.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,838.16 : 195,745.41 = 78,175.80 : x
  2. Step 2: Convert to fraction form
    141,838.16/195,745.41 = 78,175.80/x
  3. Step 3: Cross multiply
    141,838.16x = 195,745.41 × 78,175.80
  4. Step 4: Simplify right side
    141,838.16x = 15,302,554,023.08
  5. Step 5: Solve for x
    x = 15,302,554,023.08/141,838.16
  6. Step 6: Final answer
    x = 107,887.43

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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.