Home / 110,847.10-166,270.65-81,322.60

Finding the Fourth Proportional to 110,847.10, 166,270.65 and 81,322.60

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Solution

The fourth proportional to 110,847.10, 166,270.65 and 81,322.60 is: 121,983.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,847.10 : 166,270.65 = 81,322.60 : x
  2. Step 2: Convert to fraction form
    110,847.10/166,270.65 = 81,322.60/x
  3. Step 3: Cross multiply
    110,847.10x = 166,270.65 × 81,322.60
  4. Step 4: Simplify right side
    110,847.10x = 13,521,561,561.69
  5. Step 5: Solve for x
    x = 13,521,561,561.69/110,847.10
  6. Step 6: Final answer
    x = 121,983.90

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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.