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Finding the Fourth Proportional to 139,555.82, 209,333.82 and 60,627

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Solution

The fourth proportional to 139,555.82, 209,333.82 and 60,627 is: 90,940.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,555.82 : 209,333.82 = 60,627 : x
  2. Step 2: Convert to fraction form
    139,555.82/209,333.82 = 60,627/x
  3. Step 3: Cross multiply
    139,555.82x = 209,333.82 × 60,627
  4. Step 4: Simplify right side
    139,555.82x = 12,691,281,505.14
  5. Step 5: Solve for x
    x = 12,691,281,505.14/139,555.82
  6. Step 6: Final answer
    x = 90,940.54

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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.