Home / 101,122.30-139,576.53-58,694.50

Finding the Fourth Proportional to 101,122.30, 139,576.53 and 58,694.50

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Solution

The fourth proportional to 101,122.30, 139,576.53 and 58,694.50 is: 81,014.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,122.30 : 139,576.53 = 58,694.50 : x
  2. Step 2: Convert to fraction form
    101,122.30/139,576.53 = 58,694.50/x
  3. Step 3: Cross multiply
    101,122.30x = 139,576.53 × 58,694.50
  4. Step 4: Simplify right side
    101,122.30x = 8,192,374,640.09
  5. Step 5: Solve for x
    x = 8,192,374,640.09/101,122.30
  6. Step 6: Final answer
    x = 81,014.52

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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.