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Finding the Fourth Proportional to 140,562.75, 210,844.33 and 57,456.75

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Solution

The fourth proportional to 140,562.75, 210,844.33 and 57,456.75 is: 86,185.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,562.75 : 210,844.33 = 57,456.75 : x
  2. Step 2: Convert to fraction form
    140,562.75/210,844.33 = 57,456.75/x
  3. Step 3: Cross multiply
    140,562.75x = 210,844.33 × 57,456.75
  4. Step 4: Simplify right side
    140,562.75x = 12,114,429,814.09
  5. Step 5: Solve for x
    x = 12,114,429,814.09/140,562.75
  6. Step 6: Final answer
    x = 86,185.21

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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.