Home / 140,282.61-193,591.03-76,620.41

Finding the Fourth Proportional to 140,282.61, 193,591.03 and 76,620.41

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Solution

The fourth proportional to 140,282.61, 193,591.03 and 76,620.41 is: 105,736.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,282.61 : 193,591.03 = 76,620.41 : x
  2. Step 2: Convert to fraction form
    140,282.61/193,591.03 = 76,620.41/x
  3. Step 3: Cross multiply
    140,282.61x = 193,591.03 × 76,620.41
  4. Step 4: Simplify right side
    140,282.61x = 14,833,024,090.92
  5. Step 5: Solve for x
    x = 14,833,024,090.92/140,282.61
  6. Step 6: Final answer
    x = 105,736.73

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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.