Home / 185,979.66-256,218.03-129,292.62

Finding the Fourth Proportional to 185,979.66, 256,218.03 and 129,292.62

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Solution

The fourth proportional to 185,979.66, 256,218.03 and 129,292.62 is: 178,122.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,979.66 : 256,218.03 = 129,292.62 : x
  2. Step 2: Convert to fraction form
    185,979.66/256,218.03 = 129,292.62/x
  3. Step 3: Cross multiply
    185,979.66x = 256,218.03 × 129,292.62
  4. Step 4: Simplify right side
    185,979.66x = 33,127,100,389.94
  5. Step 5: Solve for x
    x = 33,127,100,389.94/185,979.66
  6. Step 6: Final answer
    x = 178,122.17

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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.