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Finding the Fourth Proportional to 189,444, 261,402.96 and 108,855.96

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Solution

The fourth proportional to 189,444, 261,402.96 and 108,855.96 is: 150,204.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,444 : 261,402.96 = 108,855.96 : x
  2. Step 2: Convert to fraction form
    189,444/261,402.96 = 108,855.96/x
  3. Step 3: Cross multiply
    189,444x = 261,402.96 × 108,855.96
  4. Step 4: Simplify right side
    189,444x = 28,455,270,157.64
  5. Step 5: Solve for x
    x = 28,455,270,157.64/189,444
  6. Step 6: Final answer
    x = 150,204.12

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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.