Home / 214,538.36-321,682.93-81,345.96

Finding the Fourth Proportional to 214,538.36, 321,682.93 and 81,345.96

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Solution

The fourth proportional to 214,538.36, 321,682.93 and 81,345.96 is: 121,971.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,538.36 : 321,682.93 = 81,345.96 : x
  2. Step 2: Convert to fraction form
    214,538.36/321,682.93 = 81,345.96/x
  3. Step 3: Cross multiply
    214,538.36x = 321,682.93 × 81,345.96
  4. Step 4: Simplify right side
    214,538.36x = 26,167,606,756.46
  5. Step 5: Solve for x
    x = 26,167,606,756.46/214,538.36
  6. Step 6: Final answer
    x = 121,971.69

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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.