Home / 199,780.24-299,714.18-75,121.24

Finding the Fourth Proportional to 199,780.24, 299,714.18 and 75,121.24

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Solution

The fourth proportional to 199,780.24, 299,714.18 and 75,121.24 is: 112,698.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,780.24 : 299,714.18 = 75,121.24 : x
  2. Step 2: Convert to fraction form
    199,780.24/299,714.18 = 75,121.24/x
  3. Step 3: Cross multiply
    199,780.24x = 299,714.18 × 75,121.24
  4. Step 4: Simplify right side
    199,780.24x = 22,514,900,847.18
  5. Step 5: Solve for x
    x = 22,514,900,847.18/199,780.24
  6. Step 6: Final answer
    x = 112,698.34

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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.