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Finding the Fourth Proportional to 123,114.52, 169,897.80 and 66,525.76

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Solution

The fourth proportional to 123,114.52, 169,897.80 and 66,525.76 is: 91,805.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,114.52 : 169,897.80 = 66,525.76 : x
  2. Step 2: Convert to fraction form
    123,114.52/169,897.80 = 66,525.76/x
  3. Step 3: Cross multiply
    123,114.52x = 169,897.80 × 66,525.76
  4. Step 4: Simplify right side
    123,114.52x = 11,302,580,267.33
  5. Step 5: Solve for x
    x = 11,302,580,267.33/123,114.52
  6. Step 6: Final answer
    x = 91,805.42

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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.