Home / 211,136.46-316,708.71-68,982.12

Finding the Fourth Proportional to 211,136.46, 316,708.71 and 68,982.12

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Solution

The fourth proportional to 211,136.46, 316,708.71 and 68,982.12 is: 103,474.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,136.46 : 316,708.71 = 68,982.12 : x
  2. Step 2: Convert to fraction form
    211,136.46/316,708.71 = 68,982.12/x
  3. Step 3: Cross multiply
    211,136.46x = 316,708.71 × 68,982.12
  4. Step 4: Simplify right side
    211,136.46x = 21,847,238,238.27
  5. Step 5: Solve for x
    x = 21,847,238,238.27/211,136.46
  6. Step 6: Final answer
    x = 103,474.49

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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.