Home / 138,791.30-208,059.38-50,023.08

Finding the Fourth Proportional to 138,791.30, 208,059.38 and 50,023.08

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Solution

The fourth proportional to 138,791.30, 208,059.38 and 50,023.08 is: 74,988.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,791.30 : 208,059.38 = 50,023.08 : x
  2. Step 2: Convert to fraction form
    138,791.30/208,059.38 = 50,023.08/x
  3. Step 3: Cross multiply
    138,791.30x = 208,059.38 × 50,023.08
  4. Step 4: Simplify right side
    138,791.30x = 10,407,771,010.49
  5. Step 5: Solve for x
    x = 10,407,771,010.49/138,791.30
  6. Step 6: Final answer
    x = 74,988.64

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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.