Home / 214,895.11-322,353.38-81,785.69

Finding the Fourth Proportional to 214,895.11, 322,353.38 and 81,785.69

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Solution

The fourth proportional to 214,895.11, 322,353.38 and 81,785.69 is: 122,682.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,895.11 : 322,353.38 = 81,785.69 : x
  2. Step 2: Convert to fraction form
    214,895.11/322,353.38 = 81,785.69/x
  3. Step 3: Cross multiply
    214,895.11x = 322,353.38 × 81,785.69
  4. Step 4: Simplify right side
    214,895.11x = 26,363,893,607.13
  5. Step 5: Solve for x
    x = 26,363,893,607.13/214,895.11
  6. Step 6: Final answer
    x = 122,682.61

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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.