Home / 213,496.10-319,997.59-80,291.33

Finding the Fourth Proportional to 213,496.10, 319,997.59 and 80,291.33

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Solution

The fourth proportional to 213,496.10, 319,997.59 and 80,291.33 is: 120,344.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,496.10 : 319,997.59 = 80,291.33 : x
  2. Step 2: Convert to fraction form
    213,496.10/319,997.59 = 80,291.33/x
  3. Step 3: Cross multiply
    213,496.10x = 319,997.59 × 80,291.33
  4. Step 4: Simplify right side
    213,496.10x = 25,693,032,097.89
  5. Step 5: Solve for x
    x = 25,693,032,097.89/213,496.10
  6. Step 6: Final answer
    x = 120,344.27

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1.5x scale

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.