Home / 140,786.92-194,286.18-77,123.32

Finding the Fourth Proportional to 140,786.92, 194,286.18 and 77,123.32

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Solution

The fourth proportional to 140,786.92, 194,286.18 and 77,123.32 is: 106,430.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,786.92 : 194,286.18 = 77,123.32 : x
  2. Step 2: Convert to fraction form
    140,786.92/194,286.18 = 77,123.32/x
  3. Step 3: Cross multiply
    140,786.92x = 194,286.18 × 77,123.32
  4. Step 4: Simplify right side
    140,786.92x = 14,983,995,231.72
  5. Step 5: Solve for x
    x = 14,983,995,231.72/140,786.92
  6. Step 6: Final answer
    x = 106,430.31

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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.