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Finding the Fourth Proportional to 123,897.19, 185,874.43 and 43,930.91

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Solution

The fourth proportional to 123,897.19, 185,874.43 and 43,930.91 is: 65,906.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,897.19 : 185,874.43 = 43,930.91 : x
  2. Step 2: Convert to fraction form
    123,897.19/185,874.43 = 43,930.91/x
  3. Step 3: Cross multiply
    123,897.19x = 185,874.43 × 43,930.91
  4. Step 4: Simplify right side
    123,897.19x = 8,165,632,855.63
  5. Step 5: Solve for x
    x = 8,165,632,855.63/123,897.19
  6. Step 6: Final answer
    x = 65,906.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.