Home / 138,944.22-208,373.77-50,186.78

Finding the Fourth Proportional to 138,944.22, 208,373.77 and 50,186.78

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Solution

The fourth proportional to 138,944.22, 208,373.77 and 50,186.78 is: 75,264.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,944.22 : 208,373.77 = 50,186.78 : x
  2. Step 2: Convert to fraction form
    138,944.22/208,373.77 = 50,186.78/x
  3. Step 3: Cross multiply
    138,944.22x = 208,373.77 × 50,186.78
  4. Step 4: Simplify right side
    138,944.22x = 10,457,608,552.76
  5. Step 5: Solve for x
    x = 10,457,608,552.76/138,944.22
  6. Step 6: Final answer
    x = 75,264.80

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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.