Home / 204,659.69-282,435.98-128,171.63

Finding the Fourth Proportional to 204,659.69, 282,435.98 and 128,171.63

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Solution

The fourth proportional to 204,659.69, 282,435.98 and 128,171.63 is: 176,880.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,659.69 : 282,435.98 = 128,171.63 : x
  2. Step 2: Convert to fraction form
    204,659.69/282,435.98 = 128,171.63/x
  3. Step 3: Cross multiply
    204,659.69x = 282,435.98 × 128,171.63
  4. Step 4: Simplify right side
    204,659.69x = 36,200,277,874.21
  5. Step 5: Solve for x
    x = 36,200,277,874.21/204,659.69
  6. Step 6: Final answer
    x = 176,880.36

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1.5x scale

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.