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Finding the Fourth Proportional to 108,232.20, 162,348.30 and 70,907.40

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Solution

The fourth proportional to 108,232.20, 162,348.30 and 70,907.40 is: 106,361.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,232.20 : 162,348.30 = 70,907.40 : x
  2. Step 2: Convert to fraction form
    108,232.20/162,348.30 = 70,907.40/x
  3. Step 3: Cross multiply
    108,232.20x = 162,348.30 × 70,907.40
  4. Step 4: Simplify right side
    108,232.20x = 11,511,695,847.42
  5. Step 5: Solve for x
    x = 11,511,695,847.42/108,232.20
  6. Step 6: Final answer
    x = 106,361.10

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