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Finding the Fourth Proportional to 140,664, 211,047.84 and 74,101.44

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Solution

The fourth proportional to 140,664, 211,047.84 and 74,101.44 is: 111,179.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,664 : 211,047.84 = 74,101.44 : x
  2. Step 2: Convert to fraction form
    140,664/211,047.84 = 74,101.44/x
  3. Step 3: Cross multiply
    140,664x = 211,047.84 × 74,101.44
  4. Step 4: Simplify right side
    140,664x = 15,638,948,852.89
  5. Step 5: Solve for x
    x = 15,638,948,852.89/140,664
  6. Step 6: Final answer
    x = 111,179.47

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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.