Home / 102,769.56-154,180.20-28,897.56

Finding the Fourth Proportional to 102,769.56, 154,180.20 and 28,897.56

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Solution

The fourth proportional to 102,769.56, 154,180.20 and 28,897.56 is: 43,353.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,769.56 : 154,180.20 = 28,897.56 : x
  2. Step 2: Convert to fraction form
    102,769.56/154,180.20 = 28,897.56/x
  3. Step 3: Cross multiply
    102,769.56x = 154,180.20 × 28,897.56
  4. Step 4: Simplify right side
    102,769.56x = 4,455,431,580.31
  5. Step 5: Solve for x
    x = 4,455,431,580.31/102,769.56
  6. Step 6: Final answer
    x = 43,353.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.