Home / 138,877.61-208,273.43-50,119.88

Finding the Fourth Proportional to 138,877.61, 208,273.43 and 50,119.88

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Solution

The fourth proportional to 138,877.61, 208,273.43 and 50,119.88 is: 75,164.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,877.61 : 208,273.43 = 50,119.88 : x
  2. Step 2: Convert to fraction form
    138,877.61/208,273.43 = 50,119.88/x
  3. Step 3: Cross multiply
    138,877.61x = 208,273.43 × 50,119.88
  4. Step 4: Simplify right side
    138,877.61x = 10,438,638,402.72
  5. Step 5: Solve for x
    x = 10,438,638,402.72/138,877.61
  6. Step 6: Final answer
    x = 75,164.30

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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.