Home / 205,520.92-283,618.78-120,637.98

Finding the Fourth Proportional to 205,520.92, 283,618.78 and 120,637.98

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Solution

The fourth proportional to 205,520.92, 283,618.78 and 120,637.98 is: 166,480.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,520.92 : 283,618.78 = 120,637.98 : x
  2. Step 2: Convert to fraction form
    205,520.92/283,618.78 = 120,637.98/x
  3. Step 3: Cross multiply
    205,520.92x = 283,618.78 × 120,637.98
  4. Step 4: Simplify right side
    205,520.92x = 34,215,196,407.67
  5. Step 5: Solve for x
    x = 34,215,196,407.67/205,520.92
  6. Step 6: Final answer
    x = 166,480.36

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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.