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Finding the Fourth Proportional to 189,064.59, 260,909.42 and 104,183.79

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Solution

The fourth proportional to 189,064.59, 260,909.42 and 104,183.79 is: 143,773.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,064.59 : 260,909.42 = 104,183.79 : x
  2. Step 2: Convert to fraction form
    189,064.59/260,909.42 = 104,183.79/x
  3. Step 3: Cross multiply
    189,064.59x = 260,909.42 × 104,183.79
  4. Step 4: Simplify right side
    189,064.59x = 27,182,531,701.38
  5. Step 5: Solve for x
    x = 27,182,531,701.38/189,064.59
  6. Step 6: Final answer
    x = 143,773.78

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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.