Home / 140,684.13-194,144.09-77,022.09

Finding the Fourth Proportional to 140,684.13, 194,144.09 and 77,022.09

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Solution

The fourth proportional to 140,684.13, 194,144.09 and 77,022.09 is: 106,290.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,684.13 : 194,144.09 = 77,022.09 : x
  2. Step 2: Convert to fraction form
    140,684.13/194,144.09 = 77,022.09/x
  3. Step 3: Cross multiply
    140,684.13x = 194,144.09 × 77,022.09
  4. Step 4: Simplify right side
    140,684.13x = 14,953,383,187.84
  5. Step 5: Solve for x
    x = 14,953,383,187.84/140,684.13
  6. Step 6: Final answer
    x = 106,290.48

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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.