Home / 198,730.45-297,720.17-117,434.98

Finding the Fourth Proportional to 198,730.45, 297,720.17 and 117,434.98

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Solution

The fourth proportional to 198,730.45, 297,720.17 and 117,434.98 is: 175,930.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,730.45 : 297,720.17 = 117,434.98 : x
  2. Step 2: Convert to fraction form
    198,730.45/297,720.17 = 117,434.98/x
  3. Step 3: Cross multiply
    198,730.45x = 297,720.17 × 117,434.98
  4. Step 4: Simplify right side
    198,730.45x = 34,962,760,720.95
  5. Step 5: Solve for x
    x = 34,962,760,720.95/198,730.45
  6. Step 6: Final answer
    x = 175,930.57

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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.