Home / 140,198.66-193,457.13-79,776.98

Finding the Fourth Proportional to 140,198.66, 193,457.13 and 79,776.98

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Solution

The fourth proportional to 140,198.66, 193,457.13 and 79,776.98 is: 110,082.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,198.66 : 193,457.13 = 79,776.98 : x
  2. Step 2: Convert to fraction form
    140,198.66/193,457.13 = 79,776.98/x
  3. Step 3: Cross multiply
    140,198.66x = 193,457.13 × 79,776.98
  4. Step 4: Simplify right side
    140,198.66x = 15,433,425,590.87
  5. Step 5: Solve for x
    x = 15,433,425,590.87/140,198.66
  6. Step 6: Final answer
    x = 110,082.55

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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.