Home / 190,524.52-285,747.90-72,155.08

Finding the Fourth Proportional to 190,524.52, 285,747.90 and 72,155.08

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Solution

The fourth proportional to 190,524.52, 285,747.90 and 72,155.08 is: 108,217.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,524.52 : 285,747.90 = 72,155.08 : x
  2. Step 2: Convert to fraction form
    190,524.52/285,747.90 = 72,155.08/x
  3. Step 3: Cross multiply
    190,524.52x = 285,747.90 × 72,155.08
  4. Step 4: Simplify right side
    190,524.52x = 20,618,162,584.33
  5. Step 5: Solve for x
    x = 20,618,162,584.33/190,524.52
  6. Step 6: Final answer
    x = 108,217.90

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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.