Home / 126,179.42-174,127.78-68,818.86

Finding the Fourth Proportional to 126,179.42, 174,127.78 and 68,818.86

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Solution

The fourth proportional to 126,179.42, 174,127.78 and 68,818.86 is: 94,970.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,179.42 : 174,127.78 = 68,818.86 : x
  2. Step 2: Convert to fraction form
    126,179.42/174,127.78 = 68,818.86/x
  3. Step 3: Cross multiply
    126,179.42x = 174,127.78 × 68,818.86
  4. Step 4: Simplify right side
    126,179.42x = 11,983,275,313.93
  5. Step 5: Solve for x
    x = 11,983,275,313.93/126,179.42
  6. Step 6: Final answer
    x = 94,970.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.