Home / 147,379.08-221,067.90-42,198

Finding the Fourth Proportional to 147,379.08, 221,067.90 and 42,198

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Solution

The fourth proportional to 147,379.08, 221,067.90 and 42,198 is: 63,296.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,379.08 : 221,067.90 = 42,198 : x
  2. Step 2: Convert to fraction form
    147,379.08/221,067.90 = 42,198/x
  3. Step 3: Cross multiply
    147,379.08x = 221,067.90 × 42,198
  4. Step 4: Simplify right side
    147,379.08x = 9,328,623,244.20
  5. Step 5: Solve for x
    x = 9,328,623,244.20/147,379.08
  6. Step 6: Final answer
    x = 63,296.79

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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.