Home / 140,333.28-193,652.88-76,659.36

Finding the Fourth Proportional to 140,333.28, 193,652.88 and 76,659.36

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Solution

The fourth proportional to 140,333.28, 193,652.88 and 76,659.36 is: 105,786.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,333.28 : 193,652.88 = 76,659.36 : x
  2. Step 2: Convert to fraction form
    140,333.28/193,652.88 = 76,659.36/x
  3. Step 3: Cross multiply
    140,333.28x = 193,652.88 × 76,659.36
  4. Step 4: Simplify right side
    140,333.28x = 14,845,305,842.96
  5. Step 5: Solve for x
    x = 14,845,305,842.96/140,333.28
  6. Step 6: Final answer
    x = 105,786.07

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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.