Home / 104,108.10-143,669.22-56,361.45

Finding the Fourth Proportional to 104,108.10, 143,669.22 and 56,361.45

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Solution

The fourth proportional to 104,108.10, 143,669.22 and 56,361.45 is: 77,778.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,108.10 : 143,669.22 = 56,361.45 : x
  2. Step 2: Convert to fraction form
    104,108.10/143,669.22 = 56,361.45/x
  3. Step 3: Cross multiply
    104,108.10x = 143,669.22 × 56,361.45
  4. Step 4: Simplify right side
    104,108.10x = 8,097,405,559.57
  5. Step 5: Solve for x
    x = 8,097,405,559.57/104,108.10
  6. Step 6: Final answer
    x = 77,778.82

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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.