Home / 135,574.32-187,103.76-75,163.91

Finding the Fourth Proportional to 135,574.32, 187,103.76 and 75,163.91

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Solution

The fourth proportional to 135,574.32, 187,103.76 and 75,163.91 is: 103,732.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,574.32 : 187,103.76 = 75,163.91 : x
  2. Step 2: Convert to fraction form
    135,574.32/187,103.76 = 75,163.91/x
  3. Step 3: Cross multiply
    135,574.32x = 187,103.76 × 75,163.91
  4. Step 4: Simplify right side
    135,574.32x = 14,063,450,177.30
  5. Step 5: Solve for x
    x = 14,063,450,177.30/135,574.32
  6. Step 6: Final answer
    x = 103,732.40

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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.