Home / 126,436.65-189,682.31-67,263.72

Finding the Fourth Proportional to 126,436.65, 189,682.31 and 67,263.72

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Solution

The fourth proportional to 126,436.65, 189,682.31 and 67,263.72 is: 100,910.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,436.65 : 189,682.31 = 67,263.72 : x
  2. Step 2: Convert to fraction form
    126,436.65/189,682.31 = 67,263.72/x
  3. Step 3: Cross multiply
    126,436.65x = 189,682.31 × 67,263.72
  4. Step 4: Simplify right side
    126,436.65x = 12,758,736,867.29
  5. Step 5: Solve for x
    x = 12,758,736,867.29/126,436.65
  6. Step 6: Final answer
    x = 100,910.12

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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.