Home / 205,806.72-283,804.56-125,155.68

Finding the Fourth Proportional to 205,806.72, 283,804.56 and 125,155.68

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Solution

The fourth proportional to 205,806.72, 283,804.56 and 125,155.68 is: 172,587.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,806.72 : 283,804.56 = 125,155.68 : x
  2. Step 2: Convert to fraction form
    205,806.72/283,804.56 = 125,155.68/x
  3. Step 3: Cross multiply
    205,806.72x = 283,804.56 × 125,155.68
  4. Step 4: Simplify right side
    205,806.72x = 35,519,752,693.90
  5. Step 5: Solve for x
    x = 35,519,752,693.90/205,806.72
  6. Step 6: Final answer
    x = 172,587.91

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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.