Home / 101,644.22-140,266.94-56,321.81

Finding the Fourth Proportional to 101,644.22, 140,266.94 and 56,321.81

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Solution

The fourth proportional to 101,644.22, 140,266.94 and 56,321.81 is: 77,722.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,644.22 : 140,266.94 = 56,321.81 : x
  2. Step 2: Convert to fraction form
    101,644.22/140,266.94 = 56,321.81/x
  3. Step 3: Cross multiply
    101,644.22x = 140,266.94 × 56,321.81
  4. Step 4: Simplify right side
    101,644.22x = 7,900,087,487.02
  5. Step 5: Solve for x
    x = 7,900,087,487.02/101,644.22
  6. Step 6: Final answer
    x = 77,722.94

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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.