Home / 214,641.07-321,961.33-81,521.08

Finding the Fourth Proportional to 214,641.07, 321,961.33 and 81,521.08

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Solution

The fourth proportional to 214,641.07, 321,961.33 and 81,521.08 is: 122,281.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,641.07 : 321,961.33 = 81,521.08 : x
  2. Step 2: Convert to fraction form
    214,641.07/321,961.33 = 81,521.08/x
  3. Step 3: Cross multiply
    214,641.07x = 321,961.33 × 81,521.08
  4. Step 4: Simplify right side
    214,641.07x = 26,246,635,339.84
  5. Step 5: Solve for x
    x = 26,246,635,339.84/214,641.07
  6. Step 6: Final answer
    x = 122,281.52

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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.