Home / 131,358.93-197,067.21-42,621.39

Finding the Fourth Proportional to 131,358.93, 197,067.21 and 42,621.39

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Solution

The fourth proportional to 131,358.93, 197,067.21 and 42,621.39 is: 63,941.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,358.93 : 197,067.21 = 42,621.39 : x
  2. Step 2: Convert to fraction form
    131,358.93/197,067.21 = 42,621.39/x
  3. Step 3: Cross multiply
    131,358.93x = 197,067.21 × 42,621.39
  4. Step 4: Simplify right side
    131,358.93x = 8,399,278,413.62
  5. Step 5: Solve for x
    x = 8,399,278,413.62/131,358.93
  6. Step 6: Final answer
    x = 63,941.43

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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.