Home / 215,146.88-322,609.16-96,717.20

Finding the Fourth Proportional to 215,146.88, 322,609.16 and 96,717.20

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Solution

The fourth proportional to 215,146.88, 322,609.16 and 96,717.20 is: 145,025.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,146.88 : 322,609.16 = 96,717.20 : x
  2. Step 2: Convert to fraction form
    215,146.88/322,609.16 = 96,717.20/x
  3. Step 3: Cross multiply
    215,146.88x = 322,609.16 × 96,717.20
  4. Step 4: Simplify right side
    215,146.88x = 31,201,854,649.55
  5. Step 5: Solve for x
    x = 31,201,854,649.55/215,146.88
  6. Step 6: Final answer
    x = 145,025.83

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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.