Home / 138,867.60-208,258.20-50,109.54

Finding the Fourth Proportional to 138,867.60, 208,258.20 and 50,109.54

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Solution

The fourth proportional to 138,867.60, 208,258.20 and 50,109.54 is: 75,148.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,867.60 : 208,258.20 = 50,109.54 : x
  2. Step 2: Convert to fraction form
    138,867.60/208,258.20 = 50,109.54/x
  3. Step 3: Cross multiply
    138,867.60x = 208,258.20 × 50,109.54
  4. Step 4: Simplify right side
    138,867.60x = 10,435,722,603.23
  5. Step 5: Solve for x
    x = 10,435,722,603.23/138,867.60
  6. Step 6: Final answer
    x = 75,148.72

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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.