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Finding the Fourth Proportional to 108,910.48, 150,290.88 and 61,165.84

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Solution

The fourth proportional to 108,910.48, 150,290.88 and 61,165.84 is: 84,405.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,910.48 : 150,290.88 = 61,165.84 : x
  2. Step 2: Convert to fraction form
    108,910.48/150,290.88 = 61,165.84/x
  3. Step 3: Cross multiply
    108,910.48x = 150,290.88 × 61,165.84
  4. Step 4: Simplify right side
    108,910.48x = 9,192,667,919.54
  5. Step 5: Solve for x
    x = 9,192,667,919.54/108,910.48
  6. Step 6: Final answer
    x = 84,405.72

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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.