Home / 104,880.85-144,739.98-57,136.82

Finding the Fourth Proportional to 104,880.85, 144,739.98 and 57,136.82

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Solution

The fourth proportional to 104,880.85, 144,739.98 and 57,136.82 is: 78,851.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,880.85 : 144,739.98 = 57,136.82 : x
  2. Step 2: Convert to fraction form
    104,880.85/144,739.98 = 57,136.82/x
  3. Step 3: Cross multiply
    104,880.85x = 144,739.98 × 57,136.82
  4. Step 4: Simplify right side
    104,880.85x = 8,269,981,460.36
  5. Step 5: Solve for x
    x = 8,269,981,460.36/104,880.85
  6. Step 6: Final answer
    x = 78,851.21

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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.