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Finding the Fourth Proportional to 140,596.56, 210,924 and 73,999.98

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Solution

The fourth proportional to 140,596.56, 210,924 and 73,999.98 is: 111,015.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,596.56 : 210,924 = 73,999.98 : x
  2. Step 2: Convert to fraction form
    140,596.56/210,924 = 73,999.98/x
  3. Step 3: Cross multiply
    140,596.56x = 210,924 × 73,999.98
  4. Step 4: Simplify right side
    140,596.56x = 15,608,371,781.52
  5. Step 5: Solve for x
    x = 15,608,371,781.52/140,596.56
  6. Step 6: Final answer
    x = 111,015.32

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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.