Home / 187,515.76-281,468.10-125,618.80

Finding the Fourth Proportional to 187,515.76, 281,468.10 and 125,618.80

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Solution

The fourth proportional to 187,515.76, 281,468.10 and 125,618.80 is: 188,558.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,515.76 : 281,468.10 = 125,618.80 : x
  2. Step 2: Convert to fraction form
    187,515.76/281,468.10 = 125,618.80/x
  3. Step 3: Cross multiply
    187,515.76x = 281,468.10 × 125,618.80
  4. Step 4: Simplify right side
    187,515.76x = 35,357,684,960.28
  5. Step 5: Solve for x
    x = 35,357,684,960.28/187,515.76
  6. Step 6: Final answer
    x = 188,558.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.