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Finding the Fourth Proportional to 189,030.66, 260,863.11 and 104,147.73

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Solution

The fourth proportional to 189,030.66, 260,863.11 and 104,147.73 is: 143,724.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,030.66 : 260,863.11 = 104,147.73 : x
  2. Step 2: Convert to fraction form
    189,030.66/260,863.11 = 104,147.73/x
  3. Step 3: Cross multiply
    189,030.66x = 260,863.11 × 104,147.73
  4. Step 4: Simplify right side
    189,030.66x = 27,168,300,747.24
  5. Step 5: Solve for x
    x = 27,168,300,747.24/189,030.66
  6. Step 6: Final answer
    x = 143,724.31

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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.