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Finding the Fourth Proportional to 108,232.20, 149,347.80 and 67,942.80

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Solution

The fourth proportional to 108,232.20, 149,347.80 and 67,942.80 is: 93,753.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,232.20 : 149,347.80 = 67,942.80 : x
  2. Step 2: Convert to fraction form
    108,232.20/149,347.80 = 67,942.80/x
  3. Step 3: Cross multiply
    108,232.20x = 149,347.80 × 67,942.80
  4. Step 4: Simplify right side
    108,232.20x = 10,147,107,705.84
  5. Step 5: Solve for x
    x = 10,147,107,705.84/108,232.20
  6. Step 6: Final answer
    x = 93,753.13

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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.