Home / 135,574.35-187,103.81-75,163.95

Finding the Fourth Proportional to 135,574.35, 187,103.81 and 75,163.95

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Solution

The fourth proportional to 135,574.35, 187,103.81 and 75,163.95 is: 103,732.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,574.35 : 187,103.81 = 75,163.95 : x
  2. Step 2: Convert to fraction form
    135,574.35/187,103.81 = 75,163.95/x
  3. Step 3: Cross multiply
    135,574.35x = 187,103.81 × 75,163.95
  4. Step 4: Simplify right side
    135,574.35x = 14,063,461,419.65
  5. Step 5: Solve for x
    x = 14,063,461,419.65/135,574.35
  6. Step 6: Final answer
    x = 103,732.46

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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.