Home / 135,956.21-187,632.25-82,254.42

Finding the Fourth Proportional to 135,956.21, 187,632.25 and 82,254.42

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Solution

The fourth proportional to 135,956.21, 187,632.25 and 82,254.42 is: 113,518.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,956.21 : 187,632.25 = 82,254.42 : x
  2. Step 2: Convert to fraction form
    135,956.21/187,632.25 = 82,254.42/x
  3. Step 3: Cross multiply
    135,956.21x = 187,632.25 × 82,254.42
  4. Step 4: Simplify right side
    135,956.21x = 15,433,581,691.41
  5. Step 5: Solve for x
    x = 15,433,581,691.41/135,956.21
  6. Step 6: Final answer
    x = 113,518.77

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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.