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Finding the Fourth Proportional to 140,520.54, 210,791.79 and 40,682.22

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Solution

The fourth proportional to 140,520.54, 210,791.79 and 40,682.22 is: 61,026.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,520.54 : 210,791.79 = 40,682.22 : x
  2. Step 2: Convert to fraction form
    140,520.54/210,791.79 = 40,682.22/x
  3. Step 3: Cross multiply
    140,520.54x = 210,791.79 × 40,682.22
  4. Step 4: Simplify right side
    140,520.54x = 8,575,477,974.97
  5. Step 5: Solve for x
    x = 8,575,477,974.97/140,520.54
  6. Step 6: Final answer
    x = 61,026.51

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1.5x scale

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.