Home / 108,480.49-149,685.26-68,165.71

Finding the Fourth Proportional to 108,480.49, 149,685.26 and 68,165.71

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Solution

The fourth proportional to 108,480.49, 149,685.26 and 68,165.71 is: 94,057.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,480.49 : 149,685.26 = 68,165.71 : x
  2. Step 2: Convert to fraction form
    108,480.49/149,685.26 = 68,165.71/x
  3. Step 3: Cross multiply
    108,480.49x = 149,685.26 × 68,165.71
  4. Step 4: Simplify right side
    108,480.49x = 10,203,401,309.39
  5. Step 5: Solve for x
    x = 10,203,401,309.39/108,480.49
  6. Step 6: Final answer
    x = 94,057.48

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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.