Home / 107,946.21-161,880.42-45,621.57

Finding the Fourth Proportional to 107,946.21, 161,880.42 and 45,621.57

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Solution

The fourth proportional to 107,946.21, 161,880.42 and 45,621.57 is: 68,415.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,946.21 : 161,880.42 = 45,621.57 : x
  2. Step 2: Convert to fraction form
    107,946.21/161,880.42 = 45,621.57/x
  3. Step 3: Cross multiply
    107,946.21x = 161,880.42 × 45,621.57
  4. Step 4: Simplify right side
    107,946.21x = 7,385,238,912.66
  5. Step 5: Solve for x
    x = 7,385,238,912.66/107,946.21
  6. Step 6: Final answer
    x = 68,415.92

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1.5x scale

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.