Home / 140,753.12-194,208.09-83,363.81

Finding the Fourth Proportional to 140,753.12, 194,208.09 and 83,363.81

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Solution

The fourth proportional to 140,753.12, 194,208.09 and 83,363.81 is: 115,023.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,753.12 : 194,208.09 = 83,363.81 : x
  2. Step 2: Convert to fraction form
    140,753.12/194,208.09 = 83,363.81/x
  3. Step 3: Cross multiply
    140,753.12x = 194,208.09 × 83,363.81
  4. Step 4: Simplify right side
    140,753.12x = 16,189,926,315.22
  5. Step 5: Solve for x
    x = 16,189,926,315.22/140,753.12
  6. Step 6: Final answer
    x = 115,023.57

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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.