Home / 131,723.52-198,569.28-120,514.32

Finding the Fourth Proportional to 131,723.52, 198,569.28 and 120,514.32

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Solution

The fourth proportional to 131,723.52, 198,569.28 and 120,514.32 is: 181,671.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,723.52 : 198,569.28 = 120,514.32 : x
  2. Step 2: Convert to fraction form
    131,723.52/198,569.28 = 120,514.32/x
  3. Step 3: Cross multiply
    131,723.52x = 198,569.28 × 120,514.32
  4. Step 4: Simplify right side
    131,723.52x = 23,930,441,752.09
  5. Step 5: Solve for x
    x = 23,930,441,752.09/131,723.52
  6. Step 6: Final answer
    x = 181,671.75

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.