Home / 138,940.21-208,360.96-60,011.38

Finding the Fourth Proportional to 138,940.21, 208,360.96 and 60,011.38

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Solution

The fourth proportional to 138,940.21, 208,360.96 and 60,011.38 is: 89,995.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,940.21 : 208,360.96 = 60,011.38 : x
  2. Step 2: Convert to fraction form
    138,940.21/208,360.96 = 60,011.38/x
  3. Step 3: Cross multiply
    138,940.21x = 208,360.96 × 60,011.38
  4. Step 4: Simplify right side
    138,940.21x = 12,504,028,858.15
  5. Step 5: Solve for x
    x = 12,504,028,858.15/138,940.21
  6. Step 6: Final answer
    x = 89,995.75

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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.