Home / 214,643.12-321,971.56-107,968.82

Finding the Fourth Proportional to 214,643.12, 321,971.56 and 107,968.82

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Solution

The fourth proportional to 214,643.12, 321,971.56 and 107,968.82 is: 161,956.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,643.12 : 321,971.56 = 107,968.82 : x
  2. Step 2: Convert to fraction form
    214,643.12/321,971.56 = 107,968.82/x
  3. Step 3: Cross multiply
    214,643.12x = 321,971.56 × 107,968.82
  4. Step 4: Simplify right side
    214,643.12x = 34,762,887,526.98
  5. Step 5: Solve for x
    x = 34,762,887,526.98/214,643.12
  6. Step 6: Final answer
    x = 161,956.69

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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.