Home / 126,435.62-189,680.76-67,262.69

Finding the Fourth Proportional to 126,435.62, 189,680.76 and 67,262.69

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Solution

The fourth proportional to 126,435.62, 189,680.76 and 67,262.69 is: 100,908.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,435.62 : 189,680.76 = 67,262.69 : x
  2. Step 2: Convert to fraction form
    126,435.62/189,680.76 = 67,262.69/x
  3. Step 3: Cross multiply
    126,435.62x = 189,680.76 × 67,262.69
  4. Step 4: Simplify right side
    126,435.62x = 12,758,437,210.44
  5. Step 5: Solve for x
    x = 12,758,437,210.44/126,435.62
  6. Step 6: Final answer
    x = 100,908.57

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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.