Home / 99,617.60-149,295.20-73,198.40

Finding the Fourth Proportional to 99,617.60, 149,295.20 and 73,198.40

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Solution

The fourth proportional to 99,617.60, 149,295.20 and 73,198.40 is: 109,701.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,617.60 : 149,295.20 = 73,198.40 : x
  2. Step 2: Convert to fraction form
    99,617.60/149,295.20 = 73,198.40/x
  3. Step 3: Cross multiply
    99,617.60x = 149,295.20 × 73,198.40
  4. Step 4: Simplify right side
    99,617.60x = 10,928,169,767.68
  5. Step 5: Solve for x
    x = 10,928,169,767.68/99,617.60
  6. Step 6: Final answer
    x = 109,701.20

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1.5x scale

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.