Home / 132,103.28-198,152.61-53,215.49

Finding the Fourth Proportional to 132,103.28, 198,152.61 and 53,215.49

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Solution

The fourth proportional to 132,103.28, 198,152.61 and 53,215.49 is: 79,822.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,103.28 : 198,152.61 = 53,215.49 : x
  2. Step 2: Convert to fraction form
    132,103.28/198,152.61 = 53,215.49/x
  3. Step 3: Cross multiply
    132,103.28x = 198,152.61 × 53,215.49
  4. Step 4: Simplify right side
    132,103.28x = 10,544,787,245.17
  5. Step 5: Solve for x
    x = 10,544,787,245.17/132,103.28
  6. Step 6: Final answer
    x = 79,822.30

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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.