Home / 198,621.57-297,533.45-91,855.87

Finding the Fourth Proportional to 198,621.57, 297,533.45 and 91,855.87

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Solution

The fourth proportional to 198,621.57, 297,533.45 and 91,855.87 is: 137,599.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,621.57 : 297,533.45 = 91,855.87 : x
  2. Step 2: Convert to fraction form
    198,621.57/297,533.45 = 91,855.87/x
  3. Step 3: Cross multiply
    198,621.57x = 297,533.45 × 91,855.87
  4. Step 4: Simplify right side
    198,621.57x = 27,330,195,063.28
  5. Step 5: Solve for x
    x = 27,330,195,063.28/198,621.57
  6. Step 6: Final answer
    x = 137,599.33

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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.