Home / 140,168.30-193,425.03-76,493.79

Finding the Fourth Proportional to 140,168.30, 193,425.03 and 76,493.79

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Solution

The fourth proportional to 140,168.30, 193,425.03 and 76,493.79 is: 105,557.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,168.30 : 193,425.03 = 76,493.79 : x
  2. Step 2: Convert to fraction form
    140,168.30/193,425.03 = 76,493.79/x
  3. Step 3: Cross multiply
    140,168.30x = 193,425.03 × 76,493.79
  4. Step 4: Simplify right side
    140,168.30x = 14,795,813,625.56
  5. Step 5: Solve for x
    x = 14,795,813,625.56/140,168.30
  6. Step 6: Final answer
    x = 105,557.49

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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.