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Finding the Fourth Proportional to 136,391.72, 188,226.39 and 75,962.34

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Solution

The fourth proportional to 136,391.72, 188,226.39 and 75,962.34 is: 104,831.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,391.72 : 188,226.39 = 75,962.34 : x
  2. Step 2: Convert to fraction form
    136,391.72/188,226.39 = 75,962.34/x
  3. Step 3: Cross multiply
    136,391.72x = 188,226.39 × 75,962.34
  4. Step 4: Simplify right side
    136,391.72x = 14,298,117,034.15
  5. Step 5: Solve for x
    x = 14,298,117,034.15/136,391.72
  6. Step 6: Final answer
    x = 104,831.27

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.