Home / 205,760.13-283,960-115,110.68

Finding the Fourth Proportional to 205,760.13, 283,960 and 115,110.68

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Solution

The fourth proportional to 205,760.13, 283,960 and 115,110.68 is: 158,858.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,760.13 : 283,960 = 115,110.68 : x
  2. Step 2: Convert to fraction form
    205,760.13/283,960 = 115,110.68/x
  3. Step 3: Cross multiply
    205,760.13x = 283,960 × 115,110.68
  4. Step 4: Simplify right side
    205,760.13x = 32,686,828,692.80
  5. Step 5: Solve for x
    x = 32,686,828,692.80/205,760.13
  6. Step 6: Final answer
    x = 158,858.91

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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.