Home / 102,769.86-154,165.05-27,891.21

Finding the Fourth Proportional to 102,769.86, 154,165.05 and 27,891.21

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Solution

The fourth proportional to 102,769.86, 154,165.05 and 27,891.21 is: 41,839.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,769.86 : 154,165.05 = 27,891.21 : x
  2. Step 2: Convert to fraction form
    102,769.86/154,165.05 = 27,891.21/x
  3. Step 3: Cross multiply
    102,769.86x = 154,165.05 × 27,891.21
  4. Step 4: Simplify right side
    102,769.86x = 4,299,849,784.21
  5. Step 5: Solve for x
    x = 4,299,849,784.21/102,769.86
  6. Step 6: Final answer
    x = 41,839.60

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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.