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Finding the Fourth Proportional to 101,983.99, 140,760.39 and 56,677.54

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Solution

The fourth proportional to 101,983.99, 140,760.39 and 56,677.54 is: 78,227.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,983.99 : 140,760.39 = 56,677.54 : x
  2. Step 2: Convert to fraction form
    101,983.99/140,760.39 = 56,677.54/x
  3. Step 3: Cross multiply
    101,983.99x = 140,760.39 × 56,677.54
  4. Step 4: Simplify right side
    101,983.99x = 7,977,952,634.64
  5. Step 5: Solve for x
    x = 7,977,952,634.64/101,983.99
  6. Step 6: Final answer
    x = 78,227.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.