Home / 204,619.37-282,513.93-128,170.05

Finding the Fourth Proportional to 204,619.37, 282,513.93 and 128,170.05

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Solution

The fourth proportional to 204,619.37, 282,513.93 and 128,170.05 is: 176,961.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,619.37 : 282,513.93 = 128,170.05 : x
  2. Step 2: Convert to fraction form
    204,619.37/282,513.93 = 128,170.05/x
  3. Step 3: Cross multiply
    204,619.37x = 282,513.93 × 128,170.05
  4. Step 4: Simplify right side
    204,619.37x = 36,209,822,993.73
  5. Step 5: Solve for x
    x = 36,209,822,993.73/204,619.37
  6. Step 6: Final answer
    x = 176,961.86

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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.