Home / 214,427.88-321,670.62-81,357.48

Finding the Fourth Proportional to 214,427.88, 321,670.62 and 81,357.48

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Solution

The fourth proportional to 214,427.88, 321,670.62 and 81,357.48 is: 122,047.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,427.88 : 321,670.62 = 81,357.48 : x
  2. Step 2: Convert to fraction form
    214,427.88/321,670.62 = 81,357.48/x
  3. Step 3: Cross multiply
    214,427.88x = 321,670.62 × 81,357.48
  4. Step 4: Simplify right side
    214,427.88x = 26,170,311,033.24
  5. Step 5: Solve for x
    x = 26,170,311,033.24/214,427.88
  6. Step 6: Final answer
    x = 122,047.15

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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.