Home / 120,516.64-180,774.05-36,276.44

Finding the Fourth Proportional to 120,516.64, 180,774.05 and 36,276.44

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Solution

The fourth proportional to 120,516.64, 180,774.05 and 36,276.44 is: 54,414.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,516.64 : 180,774.05 = 36,276.44 : x
  2. Step 2: Convert to fraction form
    120,516.64/180,774.05 = 36,276.44/x
  3. Step 3: Cross multiply
    120,516.64x = 180,774.05 × 36,276.44
  4. Step 4: Simplify right side
    120,516.64x = 6,557,837,893.13
  5. Step 5: Solve for x
    x = 6,557,837,893.13/120,516.64
  6. Step 6: Final answer
    x = 54,414.38

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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.