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Finding the Fourth Proportional to 189,379.84, 261,250.56 and 123,929.92

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Solution

The fourth proportional to 189,379.84, 261,250.56 and 123,929.92 is: 170,962.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,379.84 : 261,250.56 = 123,929.92 : x
  2. Step 2: Convert to fraction form
    189,379.84/261,250.56 = 123,929.92/x
  3. Step 3: Cross multiply
    189,379.84x = 261,250.56 × 123,929.92
  4. Step 4: Simplify right side
    189,379.84x = 32,376,761,000.76
  5. Step 5: Solve for x
    x = 32,376,761,000.76/189,379.84
  6. Step 6: Final answer
    x = 170,962.03

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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.