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Finding the Fourth Proportional to 123,025.57, 169,775.29 and 66,436.95

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Solution

The fourth proportional to 123,025.57, 169,775.29 and 66,436.95 is: 91,682.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,025.57 : 169,775.29 = 66,436.95 : x
  2. Step 2: Convert to fraction form
    123,025.57/169,775.29 = 66,436.95/x
  3. Step 3: Cross multiply
    123,025.57x = 169,775.29 × 66,436.95
  4. Step 4: Simplify right side
    123,025.57x = 11,279,351,438.00
  5. Step 5: Solve for x
    x = 11,279,351,438.00/123,025.57
  6. Step 6: Final answer
    x = 91,682.98

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.