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Finding the Fourth Proportional to 108,706.40, 163,059.60 and 82,462.40

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Solution

The fourth proportional to 108,706.40, 163,059.60 and 82,462.40 is: 123,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,706.40 : 163,059.60 = 82,462.40 : x
  2. Step 2: Convert to fraction form
    108,706.40/163,059.60 = 82,462.40/x
  3. Step 3: Cross multiply
    108,706.40x = 163,059.60 × 82,462.40
  4. Step 4: Simplify right side
    108,706.40x = 13,446,285,959.04
  5. Step 5: Solve for x
    x = 13,446,285,959.04/108,706.40
  6. Step 6: Final answer
    x = 123,693.60

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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.