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Finding the Fourth Proportional to 140,704.77, 211,057.35 and 40,865.25

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Solution

The fourth proportional to 140,704.77, 211,057.35 and 40,865.25 is: 61,297.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,704.77 : 211,057.35 = 40,865.25 : x
  2. Step 2: Convert to fraction form
    140,704.77/211,057.35 = 40,865.25/x
  3. Step 3: Cross multiply
    140,704.77x = 211,057.35 × 40,865.25
  4. Step 4: Simplify right side
    140,704.77x = 8,624,911,372.09
  5. Step 5: Solve for x
    x = 8,624,911,372.09/140,704.77
  6. Step 6: Final answer
    x = 61,297.93

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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.