Home / 104,103.21-143,662.48-56,356.56

Finding the Fourth Proportional to 104,103.21, 143,662.48 and 56,356.56

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Solution

The fourth proportional to 104,103.21, 143,662.48 and 56,356.56 is: 77,772.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,103.21 : 143,662.48 = 56,356.56 : x
  2. Step 2: Convert to fraction form
    104,103.21/143,662.48 = 56,356.56/x
  3. Step 3: Cross multiply
    104,103.21x = 143,662.48 × 56,356.56
  4. Step 4: Simplify right side
    104,103.21x = 8,096,323,173.87
  5. Step 5: Solve for x
    x = 8,096,323,173.87/104,103.21
  6. Step 6: Final answer
    x = 77,772.08

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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.