Home / 101,257.22-139,722.98-55,932.48

Finding the Fourth Proportional to 101,257.22, 139,722.98 and 55,932.48

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Solution

The fourth proportional to 101,257.22, 139,722.98 and 55,932.48 is: 77,180.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,257.22 : 139,722.98 = 55,932.48 : x
  2. Step 2: Convert to fraction form
    101,257.22/139,722.98 = 55,932.48/x
  3. Step 3: Cross multiply
    101,257.22x = 139,722.98 × 55,932.48
  4. Step 4: Simplify right side
    101,257.22x = 7,815,053,168.79
  5. Step 5: Solve for x
    x = 7,815,053,168.79/101,257.22
  6. Step 6: Final answer
    x = 77,180.21

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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.