Home / 104,128.20-156,190.92-25,243.12

Finding the Fourth Proportional to 104,128.20, 156,190.92 and 25,243.12

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Solution

The fourth proportional to 104,128.20, 156,190.92 and 25,243.12 is: 37,864.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,128.20 : 156,190.92 = 25,243.12 : x
  2. Step 2: Convert to fraction form
    104,128.20/156,190.92 = 25,243.12/x
  3. Step 3: Cross multiply
    104,128.20x = 156,190.92 × 25,243.12
  4. Step 4: Simplify right side
    104,128.20x = 3,942,746,136.47
  5. Step 5: Solve for x
    x = 3,942,746,136.47/104,128.20
  6. Step 6: Final answer
    x = 37,864.35

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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.