Home / 140,538.17-193,947.68-80,099.06

Finding the Fourth Proportional to 140,538.17, 193,947.68 and 80,099.06

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Solution

The fourth proportional to 140,538.17, 193,947.68 and 80,099.06 is: 110,539.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,538.17 : 193,947.68 = 80,099.06 : x
  2. Step 2: Convert to fraction form
    140,538.17/193,947.68 = 80,099.06/x
  3. Step 3: Cross multiply
    140,538.17x = 193,947.68 × 80,099.06
  4. Step 4: Simplify right side
    140,538.17x = 15,535,026,087.69
  5. Step 5: Solve for x
    x = 15,535,026,087.69/140,538.17
  6. Step 6: Final answer
    x = 110,539.55

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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.