Home / 100,857.27-151,286.72-34,312.53

Finding the Fourth Proportional to 100,857.27, 151,286.72 and 34,312.53

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Solution

The fourth proportional to 100,857.27, 151,286.72 and 34,312.53 is: 51,469.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,857.27 : 151,286.72 = 34,312.53 : x
  2. Step 2: Convert to fraction form
    100,857.27/151,286.72 = 34,312.53/x
  3. Step 3: Cross multiply
    100,857.27x = 151,286.72 × 34,312.53
  4. Step 4: Simplify right side
    100,857.27x = 5,191,029,947.04
  5. Step 5: Solve for x
    x = 5,191,029,947.04/100,857.27
  6. Step 6: Final answer
    x = 51,469.07

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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.