Home / 108,084.12-149,083.26-93,912.60

Finding the Fourth Proportional to 108,084.12, 149,083.26 and 93,912.60

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Solution

The fourth proportional to 108,084.12, 149,083.26 and 93,912.60 is: 129,536.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,084.12 : 149,083.26 = 93,912.60 : x
  2. Step 2: Convert to fraction form
    108,084.12/149,083.26 = 93,912.60/x
  3. Step 3: Cross multiply
    108,084.12x = 149,083.26 × 93,912.60
  4. Step 4: Simplify right side
    108,084.12x = 14,000,796,563.08
  5. Step 5: Solve for x
    x = 14,000,796,563.08/108,084.12
  6. Step 6: Final answer
    x = 129,536.11

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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.