Home / 140,717.04-194,171.49-80,284.20

Finding the Fourth Proportional to 140,717.04, 194,171.49 and 80,284.20

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Solution

The fourth proportional to 140,717.04, 194,171.49 and 80,284.20 is: 110,781.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,717.04 : 194,171.49 = 80,284.20 : x
  2. Step 2: Convert to fraction form
    140,717.04/194,171.49 = 80,284.20/x
  3. Step 3: Cross multiply
    140,717.04x = 194,171.49 × 80,284.20
  4. Step 4: Simplify right side
    140,717.04x = 15,588,902,737.46
  5. Step 5: Solve for x
    x = 15,588,902,737.46/140,717.04
  6. Step 6: Final answer
    x = 110,781.91

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1.5x scale

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.