Home / 124,974.90-172,467.72-68,389.92

Finding the Fourth Proportional to 124,974.90, 172,467.72 and 68,389.92

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Solution

The fourth proportional to 124,974.90, 172,467.72 and 68,389.92 is: 94,379.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,974.90 : 172,467.72 = 68,389.92 : x
  2. Step 2: Convert to fraction form
    124,974.90/172,467.72 = 68,389.92/x
  3. Step 3: Cross multiply
    124,974.90x = 172,467.72 × 68,389.92
  4. Step 4: Simplify right side
    124,974.90x = 11,795,053,573.38
  5. Step 5: Solve for x
    x = 11,795,053,573.38/124,974.90
  6. Step 6: Final answer
    x = 94,379.38

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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.