Home / 141,994.64-195,944.68-78,319.76

Finding the Fourth Proportional to 141,994.64, 195,944.68 and 78,319.76

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Solution

The fourth proportional to 141,994.64, 195,944.68 and 78,319.76 is: 108,076.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,994.64 : 195,944.68 = 78,319.76 : x
  2. Step 2: Convert to fraction form
    141,994.64/195,944.68 = 78,319.76/x
  3. Step 3: Cross multiply
    141,994.64x = 195,944.68 × 78,319.76
  4. Step 4: Simplify right side
    141,994.64x = 15,346,340,310.88
  5. Step 5: Solve for x
    x = 15,346,340,310.88/141,994.64
  6. Step 6: Final answer
    x = 108,076.90

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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.