Home / 214,128.40-321,340.56-73,887.52

Finding the Fourth Proportional to 214,128.40, 321,340.56 and 73,887.52

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Solution

The fourth proportional to 214,128.40, 321,340.56 and 73,887.52 is: 110,882.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,128.40 : 321,340.56 = 73,887.52 : x
  2. Step 2: Convert to fraction form
    214,128.40/321,340.56 = 73,887.52/x
  3. Step 3: Cross multiply
    214,128.40x = 321,340.56 × 73,887.52
  4. Step 4: Simplify right side
    214,128.40x = 23,743,057,053.81
  5. Step 5: Solve for x
    x = 23,743,057,053.81/214,128.40
  6. Step 6: Final answer
    x = 110,882.34

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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.