Home / 140,884.68-194,426.22-80,455.80

Finding the Fourth Proportional to 140,884.68, 194,426.22 and 80,455.80

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Solution

The fourth proportional to 140,884.68, 194,426.22 and 80,455.80 is: 111,032.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,884.68 : 194,426.22 = 80,455.80 : x
  2. Step 2: Convert to fraction form
    140,884.68/194,426.22 = 80,455.80/x
  3. Step 3: Cross multiply
    140,884.68x = 194,426.22 × 80,455.80
  4. Step 4: Simplify right side
    140,884.68x = 15,642,717,071.08
  5. Step 5: Solve for x
    x = 15,642,717,071.08/140,884.68
  6. Step 6: Final answer
    x = 111,032.07

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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.