Home / 138,877.23-208,272.87-50,119.50

Finding the Fourth Proportional to 138,877.23, 208,272.87 and 50,119.50

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Solution

The fourth proportional to 138,877.23, 208,272.87 and 50,119.50 is: 75,163.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,877.23 : 208,272.87 = 50,119.50 : x
  2. Step 2: Convert to fraction form
    138,877.23/208,272.87 = 50,119.50/x
  3. Step 3: Cross multiply
    138,877.23x = 208,272.87 × 50,119.50
  4. Step 4: Simplify right side
    138,877.23x = 10,438,532,107.97
  5. Step 5: Solve for x
    x = 10,438,532,107.97/138,877.23
  6. Step 6: Final answer
    x = 75,163.74

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1.5x scale

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.