Home / 138,795.29-208,161.79-63,843.45

Finding the Fourth Proportional to 138,795.29, 208,161.79 and 63,843.45

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Solution

The fourth proportional to 138,795.29, 208,161.79 and 63,843.45 is: 95,750.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,795.29 : 208,161.79 = 63,843.45 : x
  2. Step 2: Convert to fraction form
    138,795.29/208,161.79 = 63,843.45/x
  3. Step 3: Cross multiply
    138,795.29x = 208,161.79 × 63,843.45
  4. Step 4: Simplify right side
    138,795.29x = 13,289,766,831.78
  5. Step 5: Solve for x
    x = 13,289,766,831.78/138,795.29
  6. Step 6: Final answer
    x = 95,750.85

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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.