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Finding the Fourth Proportional to 163,067.54, 245,067.87 and 80,019.86

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Solution

The fourth proportional to 163,067.54, 245,067.87 and 80,019.86 is: 120,258.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,067.54 : 245,067.87 = 80,019.86 : x
  2. Step 2: Convert to fraction form
    163,067.54/245,067.87 = 80,019.86/x
  3. Step 3: Cross multiply
    163,067.54x = 245,067.87 × 80,019.86
  4. Step 4: Simplify right side
    163,067.54x = 19,610,296,647.90
  5. Step 5: Solve for x
    x = 19,610,296,647.90/163,067.54
  6. Step 6: Final answer
    x = 120,258.74

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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.