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Finding the Fourth Proportional to 139,069.44, 207,597 and 122,254.56

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Solution

The fourth proportional to 139,069.44, 207,597 and 122,254.56 is: 182,496.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,069.44 : 207,597 = 122,254.56 : x
  2. Step 2: Convert to fraction form
    139,069.44/207,597 = 122,254.56/x
  3. Step 3: Cross multiply
    139,069.44x = 207,597 × 122,254.56
  4. Step 4: Simplify right side
    139,069.44x = 25,379,679,892.32
  5. Step 5: Solve for x
    x = 25,379,679,892.32/139,069.44
  6. Step 6: Final answer
    x = 182,496.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.