Home / 140,703.23-194,168.97-76,171.02

Finding the Fourth Proportional to 140,703.23, 194,168.97 and 76,171.02

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Solution

The fourth proportional to 140,703.23, 194,168.97 and 76,171.02 is: 105,115.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,703.23 : 194,168.97 = 76,171.02 : x
  2. Step 2: Convert to fraction form
    140,703.23/194,168.97 = 76,171.02/x
  3. Step 3: Cross multiply
    140,703.23x = 194,168.97 × 76,171.02
  4. Step 4: Simplify right side
    140,703.23x = 14,790,048,497.25
  5. Step 5: Solve for x
    x = 14,790,048,497.25/140,703.23
  6. Step 6: Final answer
    x = 105,115.21

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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.