Home / 126,204.96-189,030.96-76,853.28

Finding the Fourth Proportional to 126,204.96, 189,030.96 and 76,853.28

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Solution

The fourth proportional to 126,204.96, 189,030.96 and 76,853.28 is: 115,111.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,204.96 : 189,030.96 = 76,853.28 : x
  2. Step 2: Convert to fraction form
    126,204.96/189,030.96 = 76,853.28/x
  3. Step 3: Cross multiply
    126,204.96x = 189,030.96 × 76,853.28
  4. Step 4: Simplify right side
    126,204.96x = 14,527,649,297.55
  5. Step 5: Solve for x
    x = 14,527,649,297.55/126,204.96
  6. Step 6: Final answer
    x = 115,111.56

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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.