Home / 104,102.10-143,661.36-56,355.45

Finding the Fourth Proportional to 104,102.10, 143,661.36 and 56,355.45

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Solution

The fourth proportional to 104,102.10, 143,661.36 and 56,355.45 is: 77,770.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,102.10 : 143,661.36 = 56,355.45 : x
  2. Step 2: Convert to fraction form
    104,102.10/143,661.36 = 56,355.45/x
  3. Step 3: Cross multiply
    104,102.10x = 143,661.36 × 56,355.45
  4. Step 4: Simplify right side
    104,102.10x = 8,096,100,801.74
  5. Step 5: Solve for x
    x = 8,096,100,801.74/104,102.10
  6. Step 6: Final answer
    x = 77,770.77

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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.