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Finding the Fourth Proportional to 115,294.96, 159,082.80 and 69,996.64

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Solution

The fourth proportional to 115,294.96, 159,082.80 and 69,996.64 is: 96,580.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,294.96 : 159,082.80 = 69,996.64 : x
  2. Step 2: Convert to fraction form
    115,294.96/159,082.80 = 69,996.64/x
  3. Step 3: Cross multiply
    115,294.96x = 159,082.80 × 69,996.64
  4. Step 4: Simplify right side
    115,294.96x = 11,135,261,481.79
  5. Step 5: Solve for x
    x = 11,135,261,481.79/115,294.96
  6. Step 6: Final answer
    x = 96,580.64

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1.5x scale

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.