Home / 135,861.46-187,494.68-75,432.12

Finding the Fourth Proportional to 135,861.46, 187,494.68 and 75,432.12

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Solution

The fourth proportional to 135,861.46, 187,494.68 and 75,432.12 is: 104,099.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,861.46 : 187,494.68 = 75,432.12 : x
  2. Step 2: Convert to fraction form
    135,861.46/187,494.68 = 75,432.12/x
  3. Step 3: Cross multiply
    135,861.46x = 187,494.68 × 75,432.12
  4. Step 4: Simplify right side
    135,861.46x = 14,143,121,213.93
  5. Step 5: Solve for x
    x = 14,143,121,213.93/135,861.46
  6. Step 6: Final answer
    x = 104,099.58

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1.5x scale

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.