Home / 102,769.83-141,824.90-57,455.34

Finding the Fourth Proportional to 102,769.83, 141,824.90 and 57,455.34

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Solution

The fourth proportional to 102,769.83, 141,824.90 and 57,455.34 is: 79,289.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,769.83 : 141,824.90 = 57,455.34 : x
  2. Step 2: Convert to fraction form
    102,769.83/141,824.90 = 57,455.34/x
  3. Step 3: Cross multiply
    102,769.83x = 141,824.90 × 57,455.34
  4. Step 4: Simplify right side
    102,769.83x = 8,148,597,849.97
  5. Step 5: Solve for x
    x = 8,148,597,849.97/102,769.83
  6. Step 6: Final answer
    x = 79,289.79

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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.