Home / 126,129.44-189,213.60-43,004

Finding the Fourth Proportional to 126,129.44, 189,213.60 and 43,004

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Solution

The fourth proportional to 126,129.44, 189,213.60 and 43,004 is: 64,512.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,129.44 : 189,213.60 = 43,004 : x
  2. Step 2: Convert to fraction form
    126,129.44/189,213.60 = 43,004/x
  3. Step 3: Cross multiply
    126,129.44x = 189,213.60 × 43,004
  4. Step 4: Simplify right side
    126,129.44x = 8,136,941,654.40
  5. Step 5: Solve for x
    x = 8,136,941,654.40/126,129.44
  6. Step 6: Final answer
    x = 64,512.63

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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.