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Finding the Fourth Proportional to 139,059, 208,594.98 and 40,563

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Solution

The fourth proportional to 139,059, 208,594.98 and 40,563 is: 60,846.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,059 : 208,594.98 = 40,563 : x
  2. Step 2: Convert to fraction form
    139,059/208,594.98 = 40,563/x
  3. Step 3: Cross multiply
    139,059x = 208,594.98 × 40,563
  4. Step 4: Simplify right side
    139,059x = 8,461,238,173.74
  5. Step 5: Solve for x
    x = 8,461,238,173.74/139,059
  6. Step 6: Final answer
    x = 60,846.39

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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.