Home / 104,085.90-156,129.24-25,200

Finding the Fourth Proportional to 104,085.90, 156,129.24 and 25,200

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Solution

The fourth proportional to 104,085.90, 156,129.24 and 25,200 is: 37,800.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,085.90 : 156,129.24 = 25,200 : x
  2. Step 2: Convert to fraction form
    104,085.90/156,129.24 = 25,200/x
  3. Step 3: Cross multiply
    104,085.90x = 156,129.24 × 25,200
  4. Step 4: Simplify right side
    104,085.90x = 3,934,456,848
  5. Step 5: Solve for x
    x = 3,934,456,848/104,085.90
  6. Step 6: Final answer
    x = 37,800.09

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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.