Home / 126,020.46-189,049.86-42,895.02

Finding the Fourth Proportional to 126,020.46, 189,049.86 and 42,895.02

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Solution

The fourth proportional to 126,020.46, 189,049.86 and 42,895.02 is: 64,349.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,020.46 : 189,049.86 = 42,895.02 : x
  2. Step 2: Convert to fraction form
    126,020.46/189,049.86 = 42,895.02/x
  3. Step 3: Cross multiply
    126,020.46x = 189,049.86 × 42,895.02
  4. Step 4: Simplify right side
    126,020.46x = 8,109,297,525.70
  5. Step 5: Solve for x
    x = 8,109,297,525.70/126,020.46
  6. Step 6: Final answer
    x = 64,349.06

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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.