Home / 185,991.16-256,233.88-129,304.12

Finding the Fourth Proportional to 185,991.16, 256,233.88 and 129,304.12

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Solution

The fourth proportional to 185,991.16, 256,233.88 and 129,304.12 is: 178,138.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,991.16 : 256,233.88 = 129,304.12 : x
  2. Step 2: Convert to fraction form
    185,991.16/256,233.88 = 129,304.12/x
  3. Step 3: Cross multiply
    185,991.16x = 256,233.88 × 129,304.12
  4. Step 4: Simplify right side
    185,991.16x = 33,132,096,367.59
  5. Step 5: Solve for x
    x = 33,132,096,367.59/185,991.16
  6. Step 6: Final answer
    x = 178,138.02

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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.