Home / 140,020.62-193,239.93-79,610.22

Finding the Fourth Proportional to 140,020.62, 193,239.93 and 79,610.22

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Solution

The fourth proportional to 140,020.62, 193,239.93 and 79,610.22 is: 109,868.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,020.62 : 193,239.93 = 79,610.22 : x
  2. Step 2: Convert to fraction form
    140,020.62/193,239.93 = 79,610.22/x
  3. Step 3: Cross multiply
    140,020.62x = 193,239.93 × 79,610.22
  4. Step 4: Simplify right side
    140,020.62x = 15,383,873,340.08
  5. Step 5: Solve for x
    x = 15,383,873,340.08/140,020.62
  6. Step 6: Final answer
    x = 109,868.63

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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.