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Finding the Fourth Proportional to 108,617.46, 149,735.03 and 76,253.54

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Solution

The fourth proportional to 108,617.46, 149,735.03 and 76,253.54 is: 105,119.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,617.46 : 149,735.03 = 76,253.54 : x
  2. Step 2: Convert to fraction form
    108,617.46/149,735.03 = 76,253.54/x
  3. Step 3: Cross multiply
    108,617.46x = 149,735.03 × 76,253.54
  4. Step 4: Simplify right side
    108,617.46x = 11,417,824,969.56
  5. Step 5: Solve for x
    x = 11,417,824,969.56/108,617.46
  6. Step 6: Final answer
    x = 105,119.61

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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.