Home / 108,546.90-162,539.94-74,916.72

Finding the Fourth Proportional to 108,546.90, 162,539.94 and 74,916.72

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Solution

The fourth proportional to 108,546.90, 162,539.94 and 74,916.72 is: 112,181.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,546.90 : 162,539.94 = 74,916.72 : x
  2. Step 2: Convert to fraction form
    108,546.90/162,539.94 = 74,916.72/x
  3. Step 3: Cross multiply
    108,546.90x = 162,539.94 × 74,916.72
  4. Step 4: Simplify right side
    108,546.90x = 12,176,958,799.21
  5. Step 5: Solve for x
    x = 12,176,958,799.21/108,546.90
  6. Step 6: Final answer
    x = 112,181.54

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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.