Home / 205,187.72-283,160.22-120,306.20

Finding the Fourth Proportional to 205,187.72, 283,160.22 and 120,306.20

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Solution

The fourth proportional to 205,187.72, 283,160.22 and 120,306.20 is: 166,023.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,187.72 : 283,160.22 = 120,306.20 : x
  2. Step 2: Convert to fraction form
    205,187.72/283,160.22 = 120,306.20/x
  3. Step 3: Cross multiply
    205,187.72x = 283,160.22 × 120,306.20
  4. Step 4: Simplify right side
    205,187.72x = 34,065,930,059.36
  5. Step 5: Solve for x
    x = 34,065,930,059.36/205,187.72
  6. Step 6: Final answer
    x = 166,023.24

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1.5x scale

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.