Home / 126,106.56-189,204.48-55,979.52

Finding the Fourth Proportional to 126,106.56, 189,204.48 and 55,979.52

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Solution

The fourth proportional to 126,106.56, 189,204.48 and 55,979.52 is: 83,989.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,106.56 : 189,204.48 = 55,979.52 : x
  2. Step 2: Convert to fraction form
    126,106.56/189,204.48 = 55,979.52/x
  3. Step 3: Cross multiply
    126,106.56x = 189,204.48 × 55,979.52
  4. Step 4: Simplify right side
    126,106.56x = 10,591,575,972.25
  5. Step 5: Solve for x
    x = 10,591,575,972.25/126,106.56
  6. Step 6: Final answer
    x = 83,989.10

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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.