Home / 126,392.36-189,623.97-55,321.20

Finding the Fourth Proportional to 126,392.36, 189,623.97 and 55,321.20

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Solution

The fourth proportional to 126,392.36, 189,623.97 and 55,321.20 is: 82,997.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,392.36 : 189,623.97 = 55,321.20 : x
  2. Step 2: Convert to fraction form
    126,392.36/189,623.97 = 55,321.20/x
  3. Step 3: Cross multiply
    126,392.36x = 189,623.97 × 55,321.20
  4. Step 4: Simplify right side
    126,392.36x = 10,490,225,569.16
  5. Step 5: Solve for x
    x = 10,490,225,569.16/126,392.36
  6. Step 6: Final answer
    x = 82,997.31

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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.