Home / 135,619.14-187,154.07-75,188.22

Finding the Fourth Proportional to 135,619.14, 187,154.07 and 75,188.22

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Solution

The fourth proportional to 135,619.14, 187,154.07 and 75,188.22 is: 103,759.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,619.14 : 187,154.07 = 75,188.22 : x
  2. Step 2: Convert to fraction form
    135,619.14/187,154.07 = 75,188.22/x
  3. Step 3: Cross multiply
    135,619.14x = 187,154.07 × 75,188.22
  4. Step 4: Simplify right side
    135,619.14x = 14,071,782,195.85
  5. Step 5: Solve for x
    x = 14,071,782,195.85/135,619.14
  6. Step 6: Final answer
    x = 103,759.56

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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.