Home / 190,292.72-285,479.16-71,961.44

Finding the Fourth Proportional to 190,292.72, 285,479.16 and 71,961.44

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Solution

The fourth proportional to 190,292.72, 285,479.16 and 71,961.44 is: 107,957.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,292.72 : 285,479.16 = 71,961.44 : x
  2. Step 2: Convert to fraction form
    190,292.72/285,479.16 = 71,961.44/x
  3. Step 3: Cross multiply
    190,292.72x = 285,479.16 × 71,961.44
  4. Step 4: Simplify right side
    190,292.72x = 20,543,491,443.59
  5. Step 5: Solve for x
    x = 20,543,491,443.59/190,292.72
  6. Step 6: Final answer
    x = 107,957.32

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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.