Home / 135,170.28-186,548.60-74,745.48

Finding the Fourth Proportional to 135,170.28, 186,548.60 and 74,745.48

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Solution

The fourth proportional to 135,170.28, 186,548.60 and 74,745.48 is: 103,156.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,170.28 : 186,548.60 = 74,745.48 : x
  2. Step 2: Convert to fraction form
    135,170.28/186,548.60 = 74,745.48/x
  3. Step 3: Cross multiply
    135,170.28x = 186,548.60 × 74,745.48
  4. Step 4: Simplify right side
    135,170.28x = 13,943,664,276.60
  5. Step 5: Solve for x
    x = 13,943,664,276.60/135,170.28
  6. Step 6: Final answer
    x = 103,156.29

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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.