Home / 207,827.61-311,178.33-107,778

Finding the Fourth Proportional to 207,827.61, 311,178.33 and 107,778

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Solution

The fourth proportional to 207,827.61, 311,178.33 and 107,778 is: 161,374.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,827.61 : 311,178.33 = 107,778 : x
  2. Step 2: Convert to fraction form
    207,827.61/311,178.33 = 107,778/x
  3. Step 3: Cross multiply
    207,827.61x = 311,178.33 × 107,778
  4. Step 4: Simplify right side
    207,827.61x = 33,538,178,050.74
  5. Step 5: Solve for x
    x = 33,538,178,050.74/207,827.61
  6. Step 6: Final answer
    x = 161,374.99

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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.