Home / 111,936.60-167,904.90-76,507.20

Finding the Fourth Proportional to 111,936.60, 167,904.90 and 76,507.20

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Solution

The fourth proportional to 111,936.60, 167,904.90 and 76,507.20 is: 114,760.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,936.60 : 167,904.90 = 76,507.20 : x
  2. Step 2: Convert to fraction form
    111,936.60/167,904.90 = 76,507.20/x
  3. Step 3: Cross multiply
    111,936.60x = 167,904.90 × 76,507.20
  4. Step 4: Simplify right side
    111,936.60x = 12,845,933,765.28
  5. Step 5: Solve for x
    x = 12,845,933,765.28/111,936.60
  6. Step 6: Final answer
    x = 114,760.80

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1.5x scale

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.