Home / 205,772.40-283,949.72-115,121.25

Finding the Fourth Proportional to 205,772.40, 283,949.72 and 115,121.25

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Solution

The fourth proportional to 205,772.40, 283,949.72 and 115,121.25 is: 158,858.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,772.40 : 283,949.72 = 115,121.25 : x
  2. Step 2: Convert to fraction form
    205,772.40/283,949.72 = 115,121.25/x
  3. Step 3: Cross multiply
    205,772.40x = 283,949.72 × 115,121.25
  4. Step 4: Simplify right side
    205,772.40x = 32,688,646,127.94
  5. Step 5: Solve for x
    x = 32,688,646,127.94/205,772.40
  6. Step 6: Final answer
    x = 158,858.26

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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.