Home / 141,703.62-195,542.13-78,041.43

Finding the Fourth Proportional to 141,703.62, 195,542.13 and 78,041.43

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Solution

The fourth proportional to 141,703.62, 195,542.13 and 78,041.43 is: 107,692.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,703.62 : 195,542.13 = 78,041.43 : x
  2. Step 2: Convert to fraction form
    141,703.62/195,542.13 = 78,041.43/x
  3. Step 3: Cross multiply
    141,703.62x = 195,542.13 × 78,041.43
  4. Step 4: Simplify right side
    141,703.62x = 15,260,387,450.45
  5. Step 5: Solve for x
    x = 15,260,387,450.45/141,703.62
  6. Step 6: Final answer
    x = 107,692.29

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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.