Home / 139,936.24-209,945.12-45,164.44

Finding the Fourth Proportional to 139,936.24, 209,945.12 and 45,164.44

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Solution

The fourth proportional to 139,936.24, 209,945.12 and 45,164.44 is: 67,759.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,936.24 : 209,945.12 = 45,164.44 : x
  2. Step 2: Convert to fraction form
    139,936.24/209,945.12 = 45,164.44/x
  3. Step 3: Cross multiply
    139,936.24x = 209,945.12 × 45,164.44
  4. Step 4: Simplify right side
    139,936.24x = 9,482,053,775.53
  5. Step 5: Solve for x
    x = 9,482,053,775.53/139,936.24
  6. Step 6: Final answer
    x = 67,759.82

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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.