Home / 124,911.34-172,379.01-68,321.50

Finding the Fourth Proportional to 124,911.34, 172,379.01 and 68,321.50

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Solution

The fourth proportional to 124,911.34, 172,379.01 and 68,321.50 is: 94,284.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,911.34 : 172,379.01 = 68,321.50 : x
  2. Step 2: Convert to fraction form
    124,911.34/172,379.01 = 68,321.50/x
  3. Step 3: Cross multiply
    124,911.34x = 172,379.01 × 68,321.50
  4. Step 4: Simplify right side
    124,911.34x = 11,777,192,531.72
  5. Step 5: Solve for x
    x = 11,777,192,531.72/124,911.34
  6. Step 6: Final answer
    x = 94,284.41

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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.