Home / 101,538.27-140,118.24-56,213.07

Finding the Fourth Proportional to 101,538.27, 140,118.24 and 56,213.07

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Solution

The fourth proportional to 101,538.27, 140,118.24 and 56,213.07 is: 77,571.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,538.27 : 140,118.24 = 56,213.07 : x
  2. Step 2: Convert to fraction form
    101,538.27/140,118.24 = 56,213.07/x
  3. Step 3: Cross multiply
    101,538.27x = 140,118.24 × 56,213.07
  4. Step 4: Simplify right side
    101,538.27x = 7,876,476,433.40
  5. Step 5: Solve for x
    x = 7,876,476,433.40/101,538.27
  6. Step 6: Final answer
    x = 77,571.51

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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.