Home / 104,648.10-156,972.15-73,155.30

Finding the Fourth Proportional to 104,648.10, 156,972.15 and 73,155.30

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Solution

The fourth proportional to 104,648.10, 156,972.15 and 73,155.30 is: 109,732.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,648.10 : 156,972.15 = 73,155.30 : x
  2. Step 2: Convert to fraction form
    104,648.10/156,972.15 = 73,155.30/x
  3. Step 3: Cross multiply
    104,648.10x = 156,972.15 × 73,155.30
  4. Step 4: Simplify right side
    104,648.10x = 11,483,344,724.90
  5. Step 5: Solve for x
    x = 11,483,344,724.90/104,648.10
  6. Step 6: Final answer
    x = 109,732.95

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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.