Home / 101,682.06-140,322.25-56,361.02

Finding the Fourth Proportional to 101,682.06, 140,322.25 and 56,361.02

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Solution

The fourth proportional to 101,682.06, 140,322.25 and 56,361.02 is: 77,778.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,682.06 : 140,322.25 = 56,361.02 : x
  2. Step 2: Convert to fraction form
    101,682.06/140,322.25 = 56,361.02/x
  3. Step 3: Cross multiply
    101,682.06x = 140,322.25 × 56,361.02
  4. Step 4: Simplify right side
    101,682.06x = 7,908,705,138.70
  5. Step 5: Solve for x
    x = 7,908,705,138.70/101,682.06
  6. Step 6: Final answer
    x = 77,778.77

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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.