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Finding the Fourth Proportional to 159,329, 219,888.66 and 87,723.56

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Solution

The fourth proportional to 159,329, 219,888.66 and 87,723.56 is: 121,066.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,329 : 219,888.66 = 87,723.56 : x
  2. Step 2: Convert to fraction form
    159,329/219,888.66 = 87,723.56/x
  3. Step 3: Cross multiply
    159,329x = 219,888.66 × 87,723.56
  4. Step 4: Simplify right side
    159,329x = 19,289,416,058.83
  5. Step 5: Solve for x
    x = 19,289,416,058.83/159,329
  6. Step 6: Final answer
    x = 121,066.57

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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.