Home / 138,867.21-208,301.12-50,183.35

Finding the Fourth Proportional to 138,867.21, 208,301.12 and 50,183.35

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Solution

The fourth proportional to 138,867.21, 208,301.12 and 50,183.35 is: 75,275.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,867.21 : 208,301.12 = 50,183.35 : x
  2. Step 2: Convert to fraction form
    138,867.21/208,301.12 = 50,183.35/x
  3. Step 3: Cross multiply
    138,867.21x = 208,301.12 × 50,183.35
  4. Step 4: Simplify right side
    138,867.21x = 10,453,247,426.87
  5. Step 5: Solve for x
    x = 10,453,247,426.87/138,867.21
  6. Step 6: Final answer
    x = 75,275.13

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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.