Home / 214,046.40-320,839.20-80,875.20

Finding the Fourth Proportional to 214,046.40, 320,839.20 and 80,875.20

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Solution

The fourth proportional to 214,046.40, 320,839.20 and 80,875.20 is: 121,225.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,046.40 : 320,839.20 = 80,875.20 : x
  2. Step 2: Convert to fraction form
    214,046.40/320,839.20 = 80,875.20/x
  3. Step 3: Cross multiply
    214,046.40x = 320,839.20 × 80,875.20
  4. Step 4: Simplify right side
    214,046.40x = 25,947,934,467.84
  5. Step 5: Solve for x
    x = 25,947,934,467.84/214,046.40
  6. Step 6: Final answer
    x = 121,225.75

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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.