Home / 141,105.20-194,724.60-77,442.86

Finding the Fourth Proportional to 141,105.20, 194,724.60 and 77,442.86

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Solution

The fourth proportional to 141,105.20, 194,724.60 and 77,442.86 is: 106,870.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,105.20 : 194,724.60 = 77,442.86 : x
  2. Step 2: Convert to fraction form
    141,105.20/194,724.60 = 77,442.86/x
  3. Step 3: Cross multiply
    141,105.20x = 194,724.60 × 77,442.86
  4. Step 4: Simplify right side
    141,105.20x = 15,080,029,936.36
  5. Step 5: Solve for x
    x = 15,080,029,936.36/141,105.20
  6. Step 6: Final answer
    x = 106,870.83

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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.