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Finding the Fourth Proportional to 159,192, 219,670.56 and 87,575.04

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Solution

The fourth proportional to 159,192, 219,670.56 and 87,575.04 is: 120,845.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,192 : 219,670.56 = 87,575.04 : x
  2. Step 2: Convert to fraction form
    159,192/219,670.56 = 87,575.04/x
  3. Step 3: Cross multiply
    159,192x = 219,670.56 × 87,575.04
  4. Step 4: Simplify right side
    159,192x = 19,237,658,078.82
  5. Step 5: Solve for x
    x = 19,237,658,078.82/159,192
  6. Step 6: Final answer
    x = 120,845.63

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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.