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Finding the Fourth Proportional to 189,082.74, 260,933.64 and 104,199.78

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Solution

The fourth proportional to 189,082.74, 260,933.64 and 104,199.78 is: 143,795.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,082.74 : 260,933.64 = 104,199.78 : x
  2. Step 2: Convert to fraction form
    189,082.74/260,933.64 = 104,199.78/x
  3. Step 3: Cross multiply
    189,082.74x = 260,933.64 × 104,199.78
  4. Step 4: Simplify right side
    189,082.74x = 27,189,227,882.60
  5. Step 5: Solve for x
    x = 27,189,227,882.60/189,082.74
  6. Step 6: Final answer
    x = 143,795.40

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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.