Home / 104,103.28-143,662.57-56,356.63

Finding the Fourth Proportional to 104,103.28, 143,662.57 and 56,356.63

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Solution

The fourth proportional to 104,103.28, 143,662.57 and 56,356.63 is: 77,772.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,103.28 : 143,662.57 = 56,356.63 : x
  2. Step 2: Convert to fraction form
    104,103.28/143,662.57 = 56,356.63/x
  3. Step 3: Cross multiply
    104,103.28x = 143,662.57 × 56,356.63
  4. Step 4: Simplify right side
    104,103.28x = 8,096,337,584.03
  5. Step 5: Solve for x
    x = 8,096,337,584.03/104,103.28
  6. Step 6: Final answer
    x = 77,772.17

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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.