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Finding the Fourth Proportional to 159,198.66, 219,685.49 and 87,567.12

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Solution

The fourth proportional to 159,198.66, 219,685.49 and 87,567.12 is: 120,837.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,198.66 : 219,685.49 = 87,567.12 : x
  2. Step 2: Convert to fraction form
    159,198.66/219,685.49 = 87,567.12/x
  3. Step 3: Cross multiply
    159,198.66x = 219,685.49 × 87,567.12
  4. Step 4: Simplify right side
    159,198.66x = 19,237,225,227.25
  5. Step 5: Solve for x
    x = 19,237,225,227.25/159,198.66
  6. Step 6: Final answer
    x = 120,837.86

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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.