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Finding the Fourth Proportional to 99,222.45, 136,929.45 and 53,900.43

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Solution

The fourth proportional to 99,222.45, 136,929.45 and 53,900.43 is: 74,383.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,222.45 : 136,929.45 = 53,900.43 : x
  2. Step 2: Convert to fraction form
    99,222.45/136,929.45 = 53,900.43/x
  3. Step 3: Cross multiply
    99,222.45x = 136,929.45 × 53,900.43
  4. Step 4: Simplify right side
    99,222.45x = 7,380,556,234.66
  5. Step 5: Solve for x
    x = 7,380,556,234.66/99,222.45
  6. Step 6: Final answer
    x = 74,383.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.