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Finding the Fourth Proportional to 139,424.82, 209,147.44 and 39,593.04

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Solution

The fourth proportional to 139,424.82, 209,147.44 and 39,593.04 is: 59,392.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,424.82 : 209,147.44 = 39,593.04 : x
  2. Step 2: Convert to fraction form
    139,424.82/209,147.44 = 39,593.04/x
  3. Step 3: Cross multiply
    139,424.82x = 209,147.44 × 39,593.04
  4. Step 4: Simplify right side
    139,424.82x = 8,280,782,957.82
  5. Step 5: Solve for x
    x = 8,280,782,957.82/139,424.82
  6. Step 6: Final answer
    x = 59,392.46

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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.