Home / 138,851.10-208,276.65-50,118.30

Finding the Fourth Proportional to 138,851.10, 208,276.65 and 50,118.30

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Solution

The fourth proportional to 138,851.10, 208,276.65 and 50,118.30 is: 75,177.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,851.10 : 208,276.65 = 50,118.30 : x
  2. Step 2: Convert to fraction form
    138,851.10/208,276.65 = 50,118.30/x
  3. Step 3: Cross multiply
    138,851.10x = 208,276.65 × 50,118.30
  4. Step 4: Simplify right side
    138,851.10x = 10,438,471,627.70
  5. Step 5: Solve for x
    x = 10,438,471,627.70/138,851.10
  6. Step 6: Final answer
    x = 75,177.45

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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.