Home / 203,455.22-280,826.66-122,869.13

Finding the Fourth Proportional to 203,455.22, 280,826.66 and 122,869.13

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Solution

The fourth proportional to 203,455.22, 280,826.66 and 122,869.13 is: 169,594.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,455.22 : 280,826.66 = 122,869.13 : x
  2. Step 2: Convert to fraction form
    203,455.22/280,826.66 = 122,869.13/x
  3. Step 3: Cross multiply
    203,455.22x = 280,826.66 × 122,869.13
  4. Step 4: Simplify right side
    203,455.22x = 34,504,926,298.05
  5. Step 5: Solve for x
    x = 34,504,926,298.05/203,455.22
  6. Step 6: Final answer
    x = 169,594.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.