Home / 106,136.83-146,469.78-57,739.81

Finding the Fourth Proportional to 106,136.83, 146,469.78 and 57,739.81

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Solution

The fourth proportional to 106,136.83, 146,469.78 and 57,739.81 is: 79,681.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,136.83 : 146,469.78 = 57,739.81 : x
  2. Step 2: Convert to fraction form
    106,136.83/146,469.78 = 57,739.81/x
  3. Step 3: Cross multiply
    106,136.83x = 146,469.78 × 57,739.81
  4. Step 4: Simplify right side
    106,136.83x = 8,457,137,233.97
  5. Step 5: Solve for x
    x = 8,457,137,233.97/106,136.83
  6. Step 6: Final answer
    x = 79,681.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.