Home / 140,189.22-193,458.62-79,758.56

Finding the Fourth Proportional to 140,189.22, 193,458.62 and 79,758.56

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Solution

The fourth proportional to 140,189.22, 193,458.62 and 79,758.56 is: 110,065.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,189.22 : 193,458.62 = 79,758.56 : x
  2. Step 2: Convert to fraction form
    140,189.22/193,458.62 = 79,758.56/x
  3. Step 3: Cross multiply
    140,189.22x = 193,458.62 × 79,758.56
  4. Step 4: Simplify right side
    140,189.22x = 15,429,980,950.79
  5. Step 5: Solve for x
    x = 15,429,980,950.79/140,189.22
  6. Step 6: Final answer
    x = 110,065.39

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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.