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Finding the Fourth Proportional to 108,769.21, 150,100.62 and 61,022.54

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Solution

The fourth proportional to 108,769.21, 150,100.62 and 61,022.54 is: 84,210.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,769.21 : 150,100.62 = 61,022.54 : x
  2. Step 2: Convert to fraction form
    108,769.21/150,100.62 = 61,022.54/x
  3. Step 3: Cross multiply
    108,769.21x = 150,100.62 × 61,022.54
  4. Step 4: Simplify right side
    108,769.21x = 9,159,521,087.97
  5. Step 5: Solve for x
    x = 9,159,521,087.97/108,769.21
  6. Step 6: Final answer
    x = 84,210.61

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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.