Home / 141,808.62-195,694.96-78,146.47

Finding the Fourth Proportional to 141,808.62, 195,694.96 and 78,146.47

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Solution

The fourth proportional to 141,808.62, 195,694.96 and 78,146.47 is: 107,841.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,808.62 : 195,694.96 = 78,146.47 : x
  2. Step 2: Convert to fraction form
    141,808.62/195,694.96 = 78,146.47/x
  3. Step 3: Cross multiply
    141,808.62x = 195,694.96 × 78,146.47
  4. Step 4: Simplify right side
    141,808.62x = 15,292,869,636.19
  5. Step 5: Solve for x
    x = 15,292,869,636.19/141,808.62
  6. Step 6: Final answer
    x = 107,841.61

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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.