Home / 107,478.87-161,219.85-40,922.64

Finding the Fourth Proportional to 107,478.87, 161,219.85 and 40,922.64

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Solution

The fourth proportional to 107,478.87, 161,219.85 and 40,922.64 is: 61,384.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,478.87 : 161,219.85 = 40,922.64 : x
  2. Step 2: Convert to fraction form
    107,478.87/161,219.85 = 40,922.64/x
  3. Step 3: Cross multiply
    107,478.87x = 161,219.85 × 40,922.64
  4. Step 4: Simplify right side
    107,478.87x = 6,597,541,882.40
  5. Step 5: Solve for x
    x = 6,597,541,882.40/107,478.87
  6. Step 6: Final answer
    x = 61,384.55

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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.