Home / 104,424.87-156,634.47-72,372.63

Finding the Fourth Proportional to 104,424.87, 156,634.47 and 72,372.63

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Solution

The fourth proportional to 104,424.87, 156,634.47 and 72,372.63 is: 108,556.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,424.87 : 156,634.47 = 72,372.63 : x
  2. Step 2: Convert to fraction form
    104,424.87/156,634.47 = 72,372.63/x
  3. Step 3: Cross multiply
    104,424.87x = 156,634.47 × 72,372.63
  4. Step 4: Simplify right side
    104,424.87x = 11,336,048,542.56
  5. Step 5: Solve for x
    x = 11,336,048,542.56/104,424.87
  6. Step 6: Final answer
    x = 108,556.98

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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.