Home / 139,331.87-208,956.77-39,500.79

Finding the Fourth Proportional to 139,331.87, 208,956.77 and 39,500.79

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Solution

The fourth proportional to 139,331.87, 208,956.77 and 39,500.79 is: 59,239.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,331.87 : 208,956.77 = 39,500.79 : x
  2. Step 2: Convert to fraction form
    139,331.87/208,956.77 = 39,500.79/x
  3. Step 3: Cross multiply
    139,331.87x = 208,956.77 × 39,500.79
  4. Step 4: Simplify right side
    139,331.87x = 8,253,957,490.85
  5. Step 5: Solve for x
    x = 8,253,957,490.85/139,331.87
  6. Step 6: Final answer
    x = 59,239.55

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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.