Home / 126,318.20-189,442.74-47,426.36

Finding the Fourth Proportional to 126,318.20, 189,442.74 and 47,426.36

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Solution

The fourth proportional to 126,318.20, 189,442.74 and 47,426.36 is: 71,126.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,318.20 : 189,442.74 = 47,426.36 : x
  2. Step 2: Convert to fraction form
    126,318.20/189,442.74 = 47,426.36/x
  3. Step 3: Cross multiply
    126,318.20x = 189,442.74 × 47,426.36
  4. Step 4: Simplify right side
    126,318.20x = 8,984,579,586.63
  5. Step 5: Solve for x
    x = 8,984,579,586.63/126,318.20
  6. Step 6: Final answer
    x = 71,126.56

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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.