Home / 132,128.28-198,141.53-47,863.44

Finding the Fourth Proportional to 132,128.28, 198,141.53 and 47,863.44

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Solution

The fourth proportional to 132,128.28, 198,141.53 and 47,863.44 is: 71,776.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,128.28 : 198,141.53 = 47,863.44 : x
  2. Step 2: Convert to fraction form
    132,128.28/198,141.53 = 47,863.44/x
  3. Step 3: Cross multiply
    132,128.28x = 198,141.53 × 47,863.44
  4. Step 4: Simplify right side
    132,128.28x = 9,483,734,993.35
  5. Step 5: Solve for x
    x = 9,483,734,993.35/132,128.28
  6. Step 6: Final answer
    x = 71,776.72

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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.