Home / 124,736.66-172,136.21-68,148.44

Finding the Fourth Proportional to 124,736.66, 172,136.21 and 68,148.44

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Solution

The fourth proportional to 124,736.66, 172,136.21 and 68,148.44 is: 94,044.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,736.66 : 172,136.21 = 68,148.44 : x
  2. Step 2: Convert to fraction form
    124,736.66/172,136.21 = 68,148.44/x
  3. Step 3: Cross multiply
    124,736.66x = 172,136.21 × 68,148.44
  4. Step 4: Simplify right side
    124,736.66x = 11,730,812,977.59
  5. Step 5: Solve for x
    x = 11,730,812,977.59/124,736.66
  6. Step 6: Final answer
    x = 94,044.63

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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.