Home / 135,571.19-187,083.41-75,147.48

Finding the Fourth Proportional to 135,571.19, 187,083.41 and 75,147.48

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Solution

The fourth proportional to 135,571.19, 187,083.41 and 75,147.48 is: 103,700.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,571.19 : 187,083.41 = 75,147.48 : x
  2. Step 2: Convert to fraction form
    135,571.19/187,083.41 = 75,147.48/x
  3. Step 3: Cross multiply
    135,571.19x = 187,083.41 × 75,147.48
  4. Step 4: Simplify right side
    135,571.19x = 14,058,846,435.57
  5. Step 5: Solve for x
    x = 14,058,846,435.57/135,571.19
  6. Step 6: Final answer
    x = 103,700.84

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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.