Home / 139,019.20-208,528.81-50,251.95

Finding the Fourth Proportional to 139,019.20, 208,528.81 and 50,251.95

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Solution

The fourth proportional to 139,019.20, 208,528.81 and 50,251.95 is: 75,377.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,019.20 : 208,528.81 = 50,251.95 : x
  2. Step 2: Convert to fraction form
    139,019.20/208,528.81 = 50,251.95/x
  3. Step 3: Cross multiply
    139,019.20x = 208,528.81 × 50,251.95
  4. Step 4: Simplify right side
    139,019.20x = 10,478,979,208.05
  5. Step 5: Solve for x
    x = 10,478,979,208.05/139,019.20
  6. Step 6: Final answer
    x = 75,377.93

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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.