Home / 217,579.96-326,385.76-91,093

Finding the Fourth Proportional to 217,579.96, 326,385.76 and 91,093

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Solution

The fourth proportional to 217,579.96, 326,385.76 and 91,093 is: 136,646.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,579.96 : 326,385.76 = 91,093 : x
  2. Step 2: Convert to fraction form
    217,579.96/326,385.76 = 91,093/x
  3. Step 3: Cross multiply
    217,579.96x = 326,385.76 × 91,093
  4. Step 4: Simplify right side
    217,579.96x = 29,731,458,035.68
  5. Step 5: Solve for x
    x = 29,731,458,035.68/217,579.96
  6. Step 6: Final answer
    x = 136,646.12

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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.