Home / 141,732.18-195,590.42-78,069.98

Finding the Fourth Proportional to 141,732.18, 195,590.42 and 78,069.98

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Solution

The fourth proportional to 141,732.18, 195,590.42 and 78,069.98 is: 107,736.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,732.18 : 195,590.42 = 78,069.98 : x
  2. Step 2: Convert to fraction form
    141,732.18/195,590.42 = 78,069.98/x
  3. Step 3: Cross multiply
    141,732.18x = 195,590.42 × 78,069.98
  4. Step 4: Simplify right side
    141,732.18x = 15,269,739,194.32
  5. Step 5: Solve for x
    x = 15,269,739,194.32/141,732.18
  6. Step 6: Final answer
    x = 107,736.57

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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.