Home / 140,198.91-193,457.48-79,777.23

Finding the Fourth Proportional to 140,198.91, 193,457.48 and 79,777.23

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Solution

The fourth proportional to 140,198.91, 193,457.48 and 79,777.23 is: 110,082.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,198.91 : 193,457.48 = 79,777.23 : x
  2. Step 2: Convert to fraction form
    140,198.91/193,457.48 = 79,777.23/x
  3. Step 3: Cross multiply
    140,198.91x = 193,457.48 × 79,777.23
  4. Step 4: Simplify right side
    140,198.91x = 15,433,501,478.29
  5. Step 5: Solve for x
    x = 15,433,501,478.29/140,198.91
  6. Step 6: Final answer
    x = 110,082.89

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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.