Home / 214,068.40-320,872.20-80,897.20

Finding the Fourth Proportional to 214,068.40, 320,872.20 and 80,897.20

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Solution

The fourth proportional to 214,068.40, 320,872.20 and 80,897.20 is: 121,258.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,068.40 : 320,872.20 = 80,897.20 : x
  2. Step 2: Convert to fraction form
    214,068.40/320,872.20 = 80,897.20/x
  3. Step 3: Cross multiply
    214,068.40x = 320,872.20 × 80,897.20
  4. Step 4: Simplify right side
    214,068.40x = 25,957,662,537.84
  5. Step 5: Solve for x
    x = 25,957,662,537.84/214,068.40
  6. Step 6: Final answer
    x = 121,258.73

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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.