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Finding the Fourth Proportional to 135,662.81, 187,202.39 and 75,233.25

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Solution

The fourth proportional to 135,662.81, 187,202.39 and 75,233.25 is: 103,815.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,662.81 : 187,202.39 = 75,233.25 : x
  2. Step 2: Convert to fraction form
    135,662.81/187,202.39 = 75,233.25/x
  3. Step 3: Cross multiply
    135,662.81x = 187,202.39 × 75,233.25
  4. Step 4: Simplify right side
    135,662.81x = 14,083,843,831.30
  5. Step 5: Solve for x
    x = 14,083,843,831.30/135,662.81
  6. Step 6: Final answer
    x = 103,815.07

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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.