Home / 129,643.20-194,464.80-124,113.60

Finding the Fourth Proportional to 129,643.20, 194,464.80 and 124,113.60

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Solution

The fourth proportional to 129,643.20, 194,464.80 and 124,113.60 is: 186,170.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,643.20 : 194,464.80 = 124,113.60 : x
  2. Step 2: Convert to fraction form
    129,643.20/194,464.80 = 124,113.60/x
  3. Step 3: Cross multiply
    129,643.20x = 194,464.80 × 124,113.60
  4. Step 4: Simplify right side
    129,643.20x = 24,135,726,401.28
  5. Step 5: Solve for x
    x = 24,135,726,401.28/129,643.20
  6. Step 6: Final answer
    x = 186,170.40

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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.