Home / 135,636.75-187,180.97-75,209.94

Finding the Fourth Proportional to 135,636.75, 187,180.97 and 75,209.94

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Solution

The fourth proportional to 135,636.75, 187,180.97 and 75,209.94 is: 103,790.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,636.75 : 187,180.97 = 75,209.94 : x
  2. Step 2: Convert to fraction form
    135,636.75/187,180.97 = 75,209.94/x
  3. Step 3: Cross multiply
    135,636.75x = 187,180.97 × 75,209.94
  4. Step 4: Simplify right side
    135,636.75x = 14,077,869,146.79
  5. Step 5: Solve for x
    x = 14,077,869,146.79/135,636.75
  6. Step 6: Final answer
    x = 103,790.96

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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.