Home / 123,702.07-185,608.44-71,111.61

Finding the Fourth Proportional to 123,702.07, 185,608.44 and 71,111.61

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Solution

The fourth proportional to 123,702.07, 185,608.44 and 71,111.61 is: 106,699.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,702.07 : 185,608.44 = 71,111.61 : x
  2. Step 2: Convert to fraction form
    123,702.07/185,608.44 = 71,111.61/x
  3. Step 3: Cross multiply
    123,702.07x = 185,608.44 × 71,111.61
  4. Step 4: Simplify right side
    123,702.07x = 13,198,914,997.99
  5. Step 5: Solve for x
    x = 13,198,914,997.99/123,702.07
  6. Step 6: Final answer
    x = 106,699.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.