Home / 185,589.73-256,118.79-100,706.86

Finding the Fourth Proportional to 185,589.73, 256,118.79 and 100,706.86

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Solution

The fourth proportional to 185,589.73, 256,118.79 and 100,706.86 is: 138,978.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,589.73 : 256,118.79 = 100,706.86 : x
  2. Step 2: Convert to fraction form
    185,589.73/256,118.79 = 100,706.86/x
  3. Step 3: Cross multiply
    185,589.73x = 256,118.79 × 100,706.86
  4. Step 4: Simplify right side
    185,589.73x = 25,792,919,127.90
  5. Step 5: Solve for x
    x = 25,792,919,127.90/185,589.73
  6. Step 6: Final answer
    x = 138,978.16

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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.