Home / 198,621.10-297,532.74-91,855.40

Finding the Fourth Proportional to 198,621.10, 297,532.74 and 91,855.40

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Solution

The fourth proportional to 198,621.10, 297,532.74 and 91,855.40 is: 137,598.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,621.10 : 297,532.74 = 91,855.40 : x
  2. Step 2: Convert to fraction form
    198,621.10/297,532.74 = 91,855.40/x
  3. Step 3: Cross multiply
    198,621.10x = 297,532.74 × 91,855.40
  4. Step 4: Simplify right side
    198,621.10x = 27,329,988,845.80
  5. Step 5: Solve for x
    x = 27,329,988,845.80/198,621.10
  6. Step 6: Final answer
    x = 137,598.62

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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.