Home / 117,850.78-162,223.31-102,717.14

Finding the Fourth Proportional to 117,850.78, 162,223.31 and 102,717.14

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Solution

The fourth proportional to 117,850.78, 162,223.31 and 102,717.14 is: 141,391.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,850.78 : 162,223.31 = 102,717.14 : x
  2. Step 2: Convert to fraction form
    117,850.78/162,223.31 = 102,717.14/x
  3. Step 3: Cross multiply
    117,850.78x = 162,223.31 × 102,717.14
  4. Step 4: Simplify right side
    117,850.78x = 16,663,113,930.95
  5. Step 5: Solve for x
    x = 16,663,113,930.95/117,850.78
  6. Step 6: Final answer
    x = 141,391.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.