Home / 140,990.45-194,564.16-79,735.82

Finding the Fourth Proportional to 140,990.45, 194,564.16 and 79,735.82

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Solution

The fourth proportional to 140,990.45, 194,564.16 and 79,735.82 is: 110,033.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,990.45 : 194,564.16 = 79,735.82 : x
  2. Step 2: Convert to fraction form
    140,990.45/194,564.16 = 79,735.82/x
  3. Step 3: Cross multiply
    140,990.45x = 194,564.16 × 79,735.82
  4. Step 4: Simplify right side
    140,990.45x = 15,513,731,867.39
  5. Step 5: Solve for x
    x = 15,513,731,867.39/140,990.45
  6. Step 6: Final answer
    x = 110,033.92

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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.