Home / 140,786.13-194,289.71-77,123.91

Finding the Fourth Proportional to 140,786.13, 194,289.71 and 77,123.91

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Solution

The fourth proportional to 140,786.13, 194,289.71 and 77,123.91 is: 106,433.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,786.13 : 194,289.71 = 77,123.91 : x
  2. Step 2: Convert to fraction form
    140,786.13/194,289.71 = 77,123.91/x
  3. Step 3: Cross multiply
    140,786.13x = 194,289.71 × 77,123.91
  4. Step 4: Simplify right side
    140,786.13x = 14,984,382,450.93
  5. Step 5: Solve for x
    x = 14,984,382,450.93/140,786.13
  6. Step 6: Final answer
    x = 106,433.65

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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.