Home / 139,060.85-208,568.98-39,228.05

Finding the Fourth Proportional to 139,060.85, 208,568.98 and 39,228.05

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Solution

The fourth proportional to 139,060.85, 208,568.98 and 39,228.05 is: 58,835.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,060.85 : 208,568.98 = 39,228.05 : x
  2. Step 2: Convert to fraction form
    139,060.85/208,568.98 = 39,228.05/x
  3. Step 3: Cross multiply
    139,060.85x = 208,568.98 × 39,228.05
  4. Step 4: Simplify right side
    139,060.85x = 8,181,753,552.49
  5. Step 5: Solve for x
    x = 8,181,753,552.49/139,060.85
  6. Step 6: Final answer
    x = 58,835.78

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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.