Home / 129,726.40-194,575.20-36,241.60

Finding the Fourth Proportional to 129,726.40, 194,575.20 and 36,241.60

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Solution

The fourth proportional to 129,726.40, 194,575.20 and 36,241.60 is: 54,358.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,726.40 : 194,575.20 = 36,241.60 : x
  2. Step 2: Convert to fraction form
    129,726.40/194,575.20 = 36,241.60/x
  3. Step 3: Cross multiply
    129,726.40x = 194,575.20 × 36,241.60
  4. Step 4: Simplify right side
    129,726.40x = 7,051,716,568.32
  5. Step 5: Solve for x
    x = 7,051,716,568.32/129,726.40
  6. Step 6: Final answer
    x = 54,358.38

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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.