Home / 141,819.59-195,711.04-78,157.39

Finding the Fourth Proportional to 141,819.59, 195,711.04 and 78,157.39

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Solution

The fourth proportional to 141,819.59, 195,711.04 and 78,157.39 is: 107,857.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,819.59 : 195,711.04 = 78,157.39 : x
  2. Step 2: Convert to fraction form
    141,819.59/195,711.04 = 78,157.39/x
  3. Step 3: Cross multiply
    141,819.59x = 195,711.04 × 78,157.39
  4. Step 4: Simplify right side
    141,819.59x = 15,296,263,395.91
  5. Step 5: Solve for x
    x = 15,296,263,395.91/141,819.59
  6. Step 6: Final answer
    x = 107,857.19

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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.