Home / 190,290.72-285,476.16-71,959.44

Finding the Fourth Proportional to 190,290.72, 285,476.16 and 71,959.44

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Solution

The fourth proportional to 190,290.72, 285,476.16 and 71,959.44 is: 107,954.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,290.72 : 285,476.16 = 71,959.44 : x
  2. Step 2: Convert to fraction form
    190,290.72/285,476.16 = 71,959.44/x
  3. Step 3: Cross multiply
    190,290.72x = 285,476.16 × 71,959.44
  4. Step 4: Simplify right side
    190,290.72x = 20,542,704,606.95
  5. Step 5: Solve for x
    x = 20,542,704,606.95/190,290.72
  6. Step 6: Final answer
    x = 107,954.32

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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.