Home / 140,536.68-193,937.67-76,872.30

Finding the Fourth Proportional to 140,536.68, 193,937.67 and 76,872.30

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Solution

The fourth proportional to 140,536.68, 193,937.67 and 76,872.30 is: 106,082.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,536.68 : 193,937.67 = 76,872.30 : x
  2. Step 2: Convert to fraction form
    140,536.68/193,937.67 = 76,872.30/x
  3. Step 3: Cross multiply
    140,536.68x = 193,937.67 × 76,872.30
  4. Step 4: Simplify right side
    140,536.68x = 14,908,434,749.54
  5. Step 5: Solve for x
    x = 14,908,434,749.54/140,536.68
  6. Step 6: Final answer
    x = 106,082.16

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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.