Home / 214,155.40-320,882.64-129,659.44

Finding the Fourth Proportional to 214,155.40, 320,882.64 and 129,659.44

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Solution

The fourth proportional to 214,155.40, 320,882.64 and 129,659.44 is: 194,276.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,155.40 : 320,882.64 = 129,659.44 : x
  2. Step 2: Convert to fraction form
    214,155.40/320,882.64 = 129,659.44/x
  3. Step 3: Cross multiply
    214,155.40x = 320,882.64 × 129,659.44
  4. Step 4: Simplify right side
    214,155.40x = 41,605,463,408.12
  5. Step 5: Solve for x
    x = 41,605,463,408.12/214,155.40
  6. Step 6: Final answer
    x = 194,276.98

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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.