Home / 135,823.92-187,385.58-100,099.14

Finding the Fourth Proportional to 135,823.92, 187,385.58 and 100,099.14

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Solution

The fourth proportional to 135,823.92, 187,385.58 and 100,099.14 is: 138,098.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,823.92 : 187,385.58 = 100,099.14 : x
  2. Step 2: Convert to fraction form
    135,823.92/187,385.58 = 100,099.14/x
  3. Step 3: Cross multiply
    135,823.92x = 187,385.58 × 100,099.14
  4. Step 4: Simplify right side
    135,823.92x = 18,757,135,406.40
  5. Step 5: Solve for x
    x = 18,757,135,406.40/135,823.92
  6. Step 6: Final answer
    x = 138,098.91

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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.