Home / 199,779.24-299,712.68-75,120.24

Finding the Fourth Proportional to 199,779.24, 299,712.68 and 75,120.24

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Solution

The fourth proportional to 199,779.24, 299,712.68 and 75,120.24 is: 112,696.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,779.24 : 299,712.68 = 75,120.24 : x
  2. Step 2: Convert to fraction form
    199,779.24/299,712.68 = 75,120.24/x
  3. Step 3: Cross multiply
    199,779.24x = 299,712.68 × 75,120.24
  4. Step 4: Simplify right side
    199,779.24x = 22,514,488,452.64
  5. Step 5: Solve for x
    x = 22,514,488,452.64/199,779.24
  6. Step 6: Final answer
    x = 112,696.84

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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.