Home / 138,665.22-208,092.87-49,919.46

Finding the Fourth Proportional to 138,665.22, 208,092.87 and 49,919.46

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Solution

The fourth proportional to 138,665.22, 208,092.87 and 49,919.46 is: 74,913.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,665.22 : 208,092.87 = 49,919.46 : x
  2. Step 2: Convert to fraction form
    138,665.22/208,092.87 = 49,919.46/x
  3. Step 3: Cross multiply
    138,665.22x = 208,092.87 × 49,919.46
  4. Step 4: Simplify right side
    138,665.22x = 10,387,883,700.25
  5. Step 5: Solve for x
    x = 10,387,883,700.25/138,665.22
  6. Step 6: Final answer
    x = 74,913.40

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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.