Home / 214,201.76-321,347.73-81,079.07

Finding the Fourth Proportional to 214,201.76, 321,347.73 and 81,079.07

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Solution

The fourth proportional to 214,201.76, 321,347.73 and 81,079.07 is: 121,635.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,201.76 : 321,347.73 = 81,079.07 : x
  2. Step 2: Convert to fraction form
    214,201.76/321,347.73 = 81,079.07/x
  3. Step 3: Cross multiply
    214,201.76x = 321,347.73 × 81,079.07
  4. Step 4: Simplify right side
    214,201.76x = 26,054,573,488.27
  5. Step 5: Solve for x
    x = 26,054,573,488.27/214,201.76
  6. Step 6: Final answer
    x = 121,635.67

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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.