Home / 141,913.42-195,830.51-78,249.85

Finding the Fourth Proportional to 141,913.42, 195,830.51 and 78,249.85

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Solution

The fourth proportional to 141,913.42, 195,830.51 and 78,249.85 is: 107,979.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,913.42 : 195,830.51 = 78,249.85 : x
  2. Step 2: Convert to fraction form
    141,913.42/195,830.51 = 78,249.85/x
  3. Step 3: Cross multiply
    141,913.42x = 195,830.51 × 78,249.85
  4. Step 4: Simplify right side
    141,913.42x = 15,323,707,592.25
  5. Step 5: Solve for x
    x = 15,323,707,592.25/141,913.42
  6. Step 6: Final answer
    x = 107,979.27

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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.