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Finding the Fourth Proportional to 109,551.78, 151,183.44 and 64,262.43

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Solution

The fourth proportional to 109,551.78, 151,183.44 and 64,262.43 is: 88,683.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,551.78 : 151,183.44 = 64,262.43 : x
  2. Step 2: Convert to fraction form
    109,551.78/151,183.44 = 64,262.43/x
  3. Step 3: Cross multiply
    109,551.78x = 151,183.44 × 64,262.43
  4. Step 4: Simplify right side
    109,551.78x = 9,715,415,230.16
  5. Step 5: Solve for x
    x = 9,715,415,230.16/109,551.78
  6. Step 6: Final answer
    x = 88,683.32

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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.