Home / 190,221.24-285,015.06-123,578.04

Finding the Fourth Proportional to 190,221.24, 285,015.06 and 123,578.04

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Solution

The fourth proportional to 190,221.24, 285,015.06 and 123,578.04 is: 185,161.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,221.24 : 285,015.06 = 123,578.04 : x
  2. Step 2: Convert to fraction form
    190,221.24/285,015.06 = 123,578.04/x
  3. Step 3: Cross multiply
    190,221.24x = 285,015.06 × 123,578.04
  4. Step 4: Simplify right side
    190,221.24x = 35,221,602,485.28
  5. Step 5: Solve for x
    x = 35,221,602,485.28/190,221.24
  6. Step 6: Final answer
    x = 185,161.25

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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.