Home / 100,972.09-151,485.40-30,849.49

Finding the Fourth Proportional to 100,972.09, 151,485.40 and 30,849.49

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Solution

The fourth proportional to 100,972.09, 151,485.40 and 30,849.49 is: 46,282.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,972.09 : 151,485.40 = 30,849.49 : x
  2. Step 2: Convert to fraction form
    100,972.09/151,485.40 = 30,849.49/x
  3. Step 3: Cross multiply
    100,972.09x = 151,485.40 × 30,849.49
  4. Step 4: Simplify right side
    100,972.09x = 4,673,246,497.90
  5. Step 5: Solve for x
    x = 4,673,246,497.90/100,972.09
  6. Step 6: Final answer
    x = 46,282.56

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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.