Home / 108,629.20-162,992.40-49,434.40

Finding the Fourth Proportional to 108,629.20, 162,992.40 and 49,434.40

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Solution

The fourth proportional to 108,629.20, 162,992.40 and 49,434.40 is: 74,173.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,629.20 : 162,992.40 = 49,434.40 : x
  2. Step 2: Convert to fraction form
    108,629.20/162,992.40 = 49,434.40/x
  3. Step 3: Cross multiply
    108,629.20x = 162,992.40 × 49,434.40
  4. Step 4: Simplify right side
    108,629.20x = 8,057,431,498.56
  5. Step 5: Solve for x
    x = 8,057,431,498.56/108,629.20
  6. Step 6: Final answer
    x = 74,173.72

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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.