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Finding the Fourth Proportional to 108,331.80, 162,497.70 and 107,640.60

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Solution

The fourth proportional to 108,331.80, 162,497.70 and 107,640.60 is: 161,460.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,331.80 : 162,497.70 = 107,640.60 : x
  2. Step 2: Convert to fraction form
    108,331.80/162,497.70 = 107,640.60/x
  3. Step 3: Cross multiply
    108,331.80x = 162,497.70 × 107,640.60
  4. Step 4: Simplify right side
    108,331.80x = 17,491,349,926.62
  5. Step 5: Solve for x
    x = 17,491,349,926.62/108,331.80
  6. Step 6: Final answer
    x = 161,460.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.