Home / 445,150.20-667,725.30-129,617.40

Finding the Fourth Proportional to 445,150.20, 667,725.30 and 129,617.40

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Solution

The fourth proportional to 445,150.20, 667,725.30 and 129,617.40 is: 194,426.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,150.20 : 667,725.30 = 129,617.40 : x
  2. Step 2: Convert to fraction form
    445,150.20/667,725.30 = 129,617.40/x
  3. Step 3: Cross multiply
    445,150.20x = 667,725.30 × 129,617.40
  4. Step 4: Simplify right side
    445,150.20x = 86,548,817,300.22
  5. Step 5: Solve for x
    x = 86,548,817,300.22/445,150.20
  6. Step 6: Final answer
    x = 194,426.10

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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.