Home / 204,979.61-283,003.57-128,603.50

Finding the Fourth Proportional to 204,979.61, 283,003.57 and 128,603.50

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Solution

The fourth proportional to 204,979.61, 283,003.57 and 128,603.50 is: 177,555.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,979.61 : 283,003.57 = 128,603.50 : x
  2. Step 2: Convert to fraction form
    204,979.61/283,003.57 = 128,603.50/x
  3. Step 3: Cross multiply
    204,979.61x = 283,003.57 × 128,603.50
  4. Step 4: Simplify right side
    204,979.61x = 36,395,249,067.74
  5. Step 5: Solve for x
    x = 36,395,249,067.74/204,979.61
  6. Step 6: Final answer
    x = 177,555.46

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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.