Home / 106,136.38-159,230.58-87,193.03

Finding the Fourth Proportional to 106,136.38, 159,230.58 and 87,193.03

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Solution

The fourth proportional to 106,136.38, 159,230.58 and 87,193.03 is: 130,810.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,136.38 : 159,230.58 = 87,193.03 : x
  2. Step 2: Convert to fraction form
    106,136.38/159,230.58 = 87,193.03/x
  3. Step 3: Cross multiply
    106,136.38x = 159,230.58 × 87,193.03
  4. Step 4: Simplify right side
    106,136.38x = 13,883,796,738.86
  5. Step 5: Solve for x
    x = 13,883,796,738.86/106,136.38
  6. Step 6: Final answer
    x = 130,810.91

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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.