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Finding the Fourth Proportional to 104,251, 143,866.30 and 56,504.36

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Solution

The fourth proportional to 104,251, 143,866.30 and 56,504.36 is: 77,975.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,251 : 143,866.30 = 56,504.36 : x
  2. Step 2: Convert to fraction form
    104,251/143,866.30 = 56,504.36/x
  3. Step 3: Cross multiply
    104,251x = 143,866.30 × 56,504.36
  4. Step 4: Simplify right side
    104,251x = 8,129,072,487.74
  5. Step 5: Solve for x
    x = 8,129,072,487.74/104,251
  6. Step 6: Final answer
    x = 77,975.97

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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.