Home / 126,311.18-188,541.95-111,364.79

Finding the Fourth Proportional to 126,311.18, 188,541.95 and 111,364.79

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Solution

The fourth proportional to 126,311.18, 188,541.95 and 111,364.79 is: 166,231.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,311.18 : 188,541.95 = 111,364.79 : x
  2. Step 2: Convert to fraction form
    126,311.18/188,541.95 = 111,364.79/x
  3. Step 3: Cross multiply
    126,311.18x = 188,541.95 × 111,364.79
  4. Step 4: Simplify right side
    126,311.18x = 20,996,933,168.41
  5. Step 5: Solve for x
    x = 20,996,933,168.41/126,311.18
  6. Step 6: Final answer
    x = 166,231.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.