Home / 103,791.92-143,256.17-67,961.12

Finding the Fourth Proportional to 103,791.92, 143,256.17 and 67,961.12

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Solution

The fourth proportional to 103,791.92, 143,256.17 and 67,961.12 is: 93,801.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,791.92 : 143,256.17 = 67,961.12 : x
  2. Step 2: Convert to fraction form
    103,791.92/143,256.17 = 67,961.12/x
  3. Step 3: Cross multiply
    103,791.92x = 143,256.17 × 67,961.12
  4. Step 4: Simplify right side
    103,791.92x = 9,735,849,420.30
  5. Step 5: Solve for x
    x = 9,735,849,420.30/103,791.92
  6. Step 6: Final answer
    x = 93,801.61

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1.5x scale

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.