Home / 140,617.28-194,051.40-76,955.60

Finding the Fourth Proportional to 140,617.28, 194,051.40 and 76,955.60

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Solution

The fourth proportional to 140,617.28, 194,051.40 and 76,955.60 is: 106,198.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,617.28 : 194,051.40 = 76,955.60 : x
  2. Step 2: Convert to fraction form
    140,617.28/194,051.40 = 76,955.60/x
  3. Step 3: Cross multiply
    140,617.28x = 194,051.40 × 76,955.60
  4. Step 4: Simplify right side
    140,617.28x = 14,933,341,917.84
  5. Step 5: Solve for x
    x = 14,933,341,917.84/140,617.28
  6. Step 6: Final answer
    x = 106,198.48

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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.