Home / 99,206.56-136,906.05-53,885.43

Finding the Fourth Proportional to 99,206.56, 136,906.05 and 53,885.43

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Solution

The fourth proportional to 99,206.56, 136,906.05 and 53,885.43 is: 74,362.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,206.56 : 136,906.05 = 53,885.43 : x
  2. Step 2: Convert to fraction form
    99,206.56/136,906.05 = 53,885.43/x
  3. Step 3: Cross multiply
    99,206.56x = 136,906.05 × 53,885.43
  4. Step 4: Simplify right side
    99,206.56x = 7,377,241,373.85
  5. Step 5: Solve for x
    x = 7,377,241,373.85/99,206.56
  6. Step 6: Final answer
    x = 74,362.44

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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.