Home / 129,361.60-178,422.78-114,227.56

Finding the Fourth Proportional to 129,361.60, 178,422.78 and 114,227.56

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Solution

The fourth proportional to 129,361.60, 178,422.78 and 114,227.56 is: 157,549.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,361.60 : 178,422.78 = 114,227.56 : x
  2. Step 2: Convert to fraction form
    129,361.60/178,422.78 = 114,227.56/x
  3. Step 3: Cross multiply
    129,361.60x = 178,422.78 × 114,227.56
  4. Step 4: Simplify right side
    129,361.60x = 20,380,798,807.82
  5. Step 5: Solve for x
    x = 20,380,798,807.82/129,361.60
  6. Step 6: Final answer
    x = 157,549.06

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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.