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Finding the Fourth Proportional to 88,009, 131,896.86 and 73,312.36

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Solution

The fourth proportional to 88,009, 131,896.86 and 73,312.36 is: 109,871.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,009 : 131,896.86 = 73,312.36 : x
  2. Step 2: Convert to fraction form
    88,009/131,896.86 = 73,312.36/x
  3. Step 3: Cross multiply
    88,009x = 131,896.86 × 73,312.36
  4. Step 4: Simplify right side
    88,009x = 9,669,670,083.19
  5. Step 5: Solve for x
    x = 9,669,670,083.19/88,009
  6. Step 6: Final answer
    x = 109,871.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.