Home / 198,617.17-297,832.11-72,168.25

Finding the Fourth Proportional to 198,617.17, 297,832.11 and 72,168.25

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Solution

The fourth proportional to 198,617.17, 297,832.11 and 72,168.25 is: 108,218.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,617.17 : 297,832.11 = 72,168.25 : x
  2. Step 2: Convert to fraction form
    198,617.17/297,832.11 = 72,168.25/x
  3. Step 3: Cross multiply
    198,617.17x = 297,832.11 × 72,168.25
  4. Step 4: Simplify right side
    198,617.17x = 21,494,022,172.51
  5. Step 5: Solve for x
    x = 21,494,022,172.51/198,617.17
  6. Step 6: Final answer
    x = 108,218.35

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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.