Home / 99,982.92-149,970.42-55,581.60

Finding the Fourth Proportional to 99,982.92, 149,970.42 and 55,581.60

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Solution

The fourth proportional to 99,982.92, 149,970.42 and 55,581.60 is: 83,370.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,982.92 : 149,970.42 = 55,581.60 : x
  2. Step 2: Convert to fraction form
    99,982.92/149,970.42 = 55,581.60/x
  3. Step 3: Cross multiply
    99,982.92x = 149,970.42 × 55,581.60
  4. Step 4: Simplify right side
    99,982.92x = 8,335,595,896.27
  5. Step 5: Solve for x
    x = 8,335,595,896.27/99,982.92
  6. Step 6: Final answer
    x = 83,370.20

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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.