Home / 187,976.12-281,862.42-86,664.76

Finding the Fourth Proportional to 187,976.12, 281,862.42 and 86,664.76

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Solution

The fourth proportional to 187,976.12, 281,862.42 and 86,664.76 is: 129,950.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,976.12 : 281,862.42 = 86,664.76 : x
  2. Step 2: Convert to fraction form
    187,976.12/281,862.42 = 86,664.76/x
  3. Step 3: Cross multiply
    187,976.12x = 281,862.42 × 86,664.76
  4. Step 4: Simplify right side
    187,976.12x = 24,427,538,982.32
  5. Step 5: Solve for x
    x = 24,427,538,982.32/187,976.12
  6. Step 6: Final answer
    x = 129,950.22

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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.