Home / 246,521.12-369,782.78-78,042.29

Finding the Fourth Proportional to 246,521.12, 369,782.78 and 78,042.29

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Solution

The fourth proportional to 246,521.12, 369,782.78 and 78,042.29 is: 117,063.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,521.12 : 369,782.78 = 78,042.29 : x
  2. Step 2: Convert to fraction form
    246,521.12/369,782.78 = 78,042.29/x
  3. Step 3: Cross multiply
    246,521.12x = 369,782.78 × 78,042.29
  4. Step 4: Simplify right side
    246,521.12x = 28,858,694,101.33
  5. Step 5: Solve for x
    x = 28,858,694,101.33/246,521.12
  6. Step 6: Final answer
    x = 117,063.78

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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.