Home / 117,496.58-162,142.70-66,508.29

Finding the Fourth Proportional to 117,496.58, 162,142.70 and 66,508.29

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Solution

The fourth proportional to 117,496.58, 162,142.70 and 66,508.29 is: 91,779.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,496.58 : 162,142.70 = 66,508.29 : x
  2. Step 2: Convert to fraction form
    117,496.58/162,142.70 = 66,508.29/x
  3. Step 3: Cross multiply
    117,496.58x = 162,142.70 × 66,508.29
  4. Step 4: Simplify right side
    117,496.58x = 10,783,833,380.44
  5. Step 5: Solve for x
    x = 10,783,833,380.44/117,496.58
  6. Step 6: Final answer
    x = 91,779.98

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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.