Home / 108,231.87-149,407.39-82,739.29

Finding the Fourth Proportional to 108,231.87, 149,407.39 and 82,739.29

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Solution

The fourth proportional to 108,231.87, 149,407.39 and 82,739.29 is: 114,216.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,231.87 : 149,407.39 = 82,739.29 : x
  2. Step 2: Convert to fraction form
    108,231.87/149,407.39 = 82,739.29/x
  3. Step 3: Cross multiply
    108,231.87x = 149,407.39 × 82,739.29
  4. Step 4: Simplify right side
    108,231.87x = 12,361,861,369.35
  5. Step 5: Solve for x
    x = 12,361,861,369.35/108,231.87
  6. Step 6: Final answer
    x = 114,216.47

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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.