Home / 135,731.95-187,311.22-75,306.56

Finding the Fourth Proportional to 135,731.95, 187,311.22 and 75,306.56

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Solution

The fourth proportional to 135,731.95, 187,311.22 and 75,306.56 is: 103,923.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,731.95 : 187,311.22 = 75,306.56 : x
  2. Step 2: Convert to fraction form
    135,731.95/187,311.22 = 75,306.56/x
  3. Step 3: Cross multiply
    135,731.95x = 187,311.22 × 75,306.56
  4. Step 4: Simplify right side
    135,731.95x = 14,105,762,502.78
  5. Step 5: Solve for x
    x = 14,105,762,502.78/135,731.95
  6. Step 6: Final answer
    x = 103,923.67

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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.