Home / 110,961.72-166,484.51-66,619.38

Finding the Fourth Proportional to 110,961.72, 166,484.51 and 66,619.38

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Solution

The fourth proportional to 110,961.72, 166,484.51 and 66,619.38 is: 99,954.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,961.72 : 166,484.51 = 66,619.38 : x
  2. Step 2: Convert to fraction form
    110,961.72/166,484.51 = 66,619.38/x
  3. Step 3: Cross multiply
    110,961.72x = 166,484.51 × 66,619.38
  4. Step 4: Simplify right side
    110,961.72x = 11,091,094,835.80
  5. Step 5: Solve for x
    x = 11,091,094,835.80/110,961.72
  6. Step 6: Final answer
    x = 99,954.24

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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.