Home / 454,514.36-681,771.52-138,971.24

Finding the Fourth Proportional to 454,514.36, 681,771.52 and 138,971.24

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Solution

The fourth proportional to 454,514.36, 681,771.52 and 138,971.24 is: 208,456.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,514.36 : 681,771.52 = 138,971.24 : x
  2. Step 2: Convert to fraction form
    454,514.36/681,771.52 = 138,971.24/x
  3. Step 3: Cross multiply
    454,514.36x = 681,771.52 × 138,971.24
  4. Step 4: Simplify right side
    454,514.36x = 94,746,633,531.08
  5. Step 5: Solve for x
    x = 94,746,633,531.08/454,514.36
  6. Step 6: Final answer
    x = 208,456.85

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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.