Home / 135,588.72-187,109.12-75,158.26

Finding the Fourth Proportional to 135,588.72, 187,109.12 and 75,158.26

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Solution

The fourth proportional to 135,588.72, 187,109.12 and 75,158.26 is: 103,716.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,588.72 : 187,109.12 = 75,158.26 : x
  2. Step 2: Convert to fraction form
    135,588.72/187,109.12 = 75,158.26/x
  3. Step 3: Cross multiply
    135,588.72x = 187,109.12 × 75,158.26
  4. Step 4: Simplify right side
    135,588.72x = 14,062,795,889.33
  5. Step 5: Solve for x
    x = 14,062,795,889.33/135,588.72
  6. Step 6: Final answer
    x = 103,716.56

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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.