Home / 126,204.78-189,161.83-51,242.63

Finding the Fourth Proportional to 126,204.78, 189,161.83 and 51,242.63

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Solution

The fourth proportional to 126,204.78, 189,161.83 and 51,242.63 is: 76,804.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,204.78 : 189,161.83 = 51,242.63 : x
  2. Step 2: Convert to fraction form
    126,204.78/189,161.83 = 51,242.63/x
  3. Step 3: Cross multiply
    126,204.78x = 189,161.83 × 51,242.63
  4. Step 4: Simplify right side
    126,204.78x = 9,693,148,783.06
  5. Step 5: Solve for x
    x = 9,693,148,783.06/126,204.78
  6. Step 6: Final answer
    x = 76,804.92

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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.