Home / 104,765.10-156,974.85-89,213.10

Finding the Fourth Proportional to 104,765.10, 156,974.85 and 89,213.10

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Solution

The fourth proportional to 104,765.10, 156,974.85 and 89,213.10 is: 133,672.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,765.10 : 156,974.85 = 89,213.10 : x
  2. Step 2: Convert to fraction form
    104,765.10/156,974.85 = 89,213.10/x
  3. Step 3: Cross multiply
    104,765.10x = 156,974.85 × 89,213.10
  4. Step 4: Simplify right side
    104,765.10x = 14,004,212,990.54
  5. Step 5: Solve for x
    x = 14,004,212,990.54/104,765.10
  6. Step 6: Final answer
    x = 133,672.50

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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.