Home / 198,724.67-298,166.64-72,373.71

Finding the Fourth Proportional to 198,724.67, 298,166.64 and 72,373.71

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Solution

The fourth proportional to 198,724.67, 298,166.64 and 72,373.71 is: 108,589.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,724.67 : 298,166.64 = 72,373.71 : x
  2. Step 2: Convert to fraction form
    198,724.67/298,166.64 = 72,373.71/x
  3. Step 3: Cross multiply
    198,724.67x = 298,166.64 × 72,373.71
  4. Step 4: Simplify right side
    198,724.67x = 21,579,425,935.03
  5. Step 5: Solve for x
    x = 21,579,425,935.03/198,724.67
  6. Step 6: Final answer
    x = 108,589.57

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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.