Home / 190,136.27-285,203.62-47,981.87

Finding the Fourth Proportional to 190,136.27, 285,203.62 and 47,981.87

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Solution

The fourth proportional to 190,136.27, 285,203.62 and 47,981.87 is: 71,972.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,136.27 : 285,203.62 = 47,981.87 : x
  2. Step 2: Convert to fraction form
    190,136.27/285,203.62 = 47,981.87/x
  3. Step 3: Cross multiply
    190,136.27x = 285,203.62 × 47,981.87
  4. Step 4: Simplify right side
    190,136.27x = 13,684,603,018.37
  5. Step 5: Solve for x
    x = 13,684,603,018.37/190,136.27
  6. Step 6: Final answer
    x = 71,972.61

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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.