Home / 107,915.76-161,846.03-31,996.55

Finding the Fourth Proportional to 107,915.76, 161,846.03 and 31,996.55

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Solution

The fourth proportional to 107,915.76, 161,846.03 and 31,996.55 is: 47,986.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,915.76 : 161,846.03 = 31,996.55 : x
  2. Step 2: Convert to fraction form
    107,915.76/161,846.03 = 31,996.55/x
  3. Step 3: Cross multiply
    107,915.76x = 161,846.03 × 31,996.55
  4. Step 4: Simplify right side
    107,915.76x = 5,178,513,621.98
  5. Step 5: Solve for x
    x = 5,178,513,621.98/107,915.76
  6. Step 6: Final answer
    x = 47,986.63

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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.