Home / 135,412.41-187,063.77-108,152.70

Finding the Fourth Proportional to 135,412.41, 187,063.77 and 108,152.70

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Solution

The fourth proportional to 135,412.41, 187,063.77 and 108,152.70 is: 149,406.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,412.41 : 187,063.77 = 108,152.70 : x
  2. Step 2: Convert to fraction form
    135,412.41/187,063.77 = 108,152.70/x
  3. Step 3: Cross multiply
    135,412.41x = 187,063.77 × 108,152.70
  4. Step 4: Simplify right side
    135,412.41x = 20,231,451,797.68
  5. Step 5: Solve for x
    x = 20,231,451,797.68/135,412.41
  6. Step 6: Final answer
    x = 149,406.19

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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.