Home / 101,749.68-140,414.94-56,431.86

Finding the Fourth Proportional to 101,749.68, 140,414.94 and 56,431.86

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Solution

The fourth proportional to 101,749.68, 140,414.94 and 56,431.86 is: 77,876.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,749.68 : 140,414.94 = 56,431.86 : x
  2. Step 2: Convert to fraction form
    101,749.68/140,414.94 = 56,431.86/x
  3. Step 3: Cross multiply
    101,749.68x = 140,414.94 × 56,431.86
  4. Step 4: Simplify right side
    101,749.68x = 7,923,876,235.99
  5. Step 5: Solve for x
    x = 7,923,876,235.99/101,749.68
  6. Step 6: Final answer
    x = 77,876.18

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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.