Home / 126,122.44-189,203.10-42,997

Finding the Fourth Proportional to 126,122.44, 189,203.10 and 42,997

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Solution

The fourth proportional to 126,122.44, 189,203.10 and 42,997 is: 64,502.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,122.44 : 189,203.10 = 42,997 : x
  2. Step 2: Convert to fraction form
    126,122.44/189,203.10 = 42,997/x
  3. Step 3: Cross multiply
    126,122.44x = 189,203.10 × 42,997
  4. Step 4: Simplify right side
    126,122.44x = 8,135,165,690.70
  5. Step 5: Solve for x
    x = 8,135,165,690.70/126,122.44
  6. Step 6: Final answer
    x = 64,502.13

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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.