Home / 135,826.92-187,389.72-100,102.14

Finding the Fourth Proportional to 135,826.92, 187,389.72 and 100,102.14

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Solution

The fourth proportional to 135,826.92, 187,389.72 and 100,102.14 is: 138,103.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,826.92 : 187,389.72 = 100,102.14 : x
  2. Step 2: Convert to fraction form
    135,826.92/187,389.72 = 100,102.14/x
  3. Step 3: Cross multiply
    135,826.92x = 187,389.72 × 100,102.14
  4. Step 4: Simplify right side
    135,826.92x = 18,758,111,986.00
  5. Step 5: Solve for x
    x = 18,758,111,986.00/135,826.92
  6. Step 6: Final answer
    x = 138,103.05

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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.