Home / 198,658.50-297,694.64-117,521.61

Finding the Fourth Proportional to 198,658.50, 297,694.64 and 117,521.61

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Solution

The fourth proportional to 198,658.50, 297,694.64 and 117,521.61 is: 176,109.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,658.50 : 297,694.64 = 117,521.61 : x
  2. Step 2: Convert to fraction form
    198,658.50/297,694.64 = 117,521.61/x
  3. Step 3: Cross multiply
    198,658.50x = 297,694.64 × 117,521.61
  4. Step 4: Simplify right side
    198,658.50x = 34,985,553,381.17
  5. Step 5: Solve for x
    x = 34,985,553,381.17/198,658.50
  6. Step 6: Final answer
    x = 176,109.02

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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.