Home / 108,450.75-149,640.76-68,141.16

Finding the Fourth Proportional to 108,450.75, 149,640.76 and 68,141.16

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Solution

The fourth proportional to 108,450.75, 149,640.76 and 68,141.16 is: 94,021.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,450.75 : 149,640.76 = 68,141.16 : x
  2. Step 2: Convert to fraction form
    108,450.75/149,640.76 = 68,141.16/x
  3. Step 3: Cross multiply
    108,450.75x = 149,640.76 × 68,141.16
  4. Step 4: Simplify right side
    108,450.75x = 10,196,694,969.68
  5. Step 5: Solve for x
    x = 10,196,694,969.68/108,450.75
  6. Step 6: Final answer
    x = 94,021.43

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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.