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Finding the Fourth Proportional to 171,150.32, 256,851.60 and 81,193.32

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Solution

The fourth proportional to 171,150.32, 256,851.60 and 81,193.32 is: 121,849.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,150.32 : 256,851.60 = 81,193.32 : x
  2. Step 2: Convert to fraction form
    171,150.32/256,851.60 = 81,193.32/x
  3. Step 3: Cross multiply
    171,150.32x = 256,851.60 × 81,193.32
  4. Step 4: Simplify right side
    171,150.32x = 20,854,634,151.31
  5. Step 5: Solve for x
    x = 20,854,634,151.31/171,150.32
  6. Step 6: Final answer
    x = 121,849.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.