Home / 132,519.20-198,721.20-39,005.60

Finding the Fourth Proportional to 132,519.20, 198,721.20 and 39,005.60

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Solution

The fourth proportional to 132,519.20, 198,721.20 and 39,005.60 is: 58,491.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,519.20 : 198,721.20 = 39,005.60 : x
  2. Step 2: Convert to fraction form
    132,519.20/198,721.20 = 39,005.60/x
  3. Step 3: Cross multiply
    132,519.20x = 198,721.20 × 39,005.60
  4. Step 4: Simplify right side
    132,519.20x = 7,751,239,638.72
  5. Step 5: Solve for x
    x = 7,751,239,638.72/132,519.20
  6. Step 6: Final answer
    x = 58,491.45

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1.5x scale

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.