Home / 143,872.12-198,698.44-109,514.08

Finding the Fourth Proportional to 143,872.12, 198,698.44 and 109,514.08

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Solution

The fourth proportional to 143,872.12, 198,698.44 and 109,514.08 is: 151,247.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,872.12 : 198,698.44 = 109,514.08 : x
  2. Step 2: Convert to fraction form
    143,872.12/198,698.44 = 109,514.08/x
  3. Step 3: Cross multiply
    143,872.12x = 198,698.44 × 109,514.08
  4. Step 4: Simplify right side
    143,872.12x = 21,760,276,854.04
  5. Step 5: Solve for x
    x = 21,760,276,854.04/143,872.12
  6. Step 6: Final answer
    x = 151,247.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.