Home / 481,037.10-721,667.97-139,487.73

Finding the Fourth Proportional to 481,037.10, 721,667.97 and 139,487.73

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Solution

The fourth proportional to 481,037.10, 721,667.97 and 139,487.73 is: 209,264.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,037.10 : 721,667.97 = 139,487.73 : x
  2. Step 2: Convert to fraction form
    481,037.10/721,667.97 = 139,487.73/x
  3. Step 3: Cross multiply
    481,037.10x = 721,667.97 × 139,487.73
  4. Step 4: Simplify right side
    481,037.10x = 100,663,826,949.01
  5. Step 5: Solve for x
    x = 100,663,826,949.01/481,037.10
  6. Step 6: Final answer
    x = 209,264.16

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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.