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Finding the Fourth Proportional to 104,153.31, 143,734.23 and 63,889.29

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Solution

The fourth proportional to 104,153.31, 143,734.23 and 63,889.29 is: 88,168.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,153.31 : 143,734.23 = 63,889.29 : x
  2. Step 2: Convert to fraction form
    104,153.31/143,734.23 = 63,889.29/x
  3. Step 3: Cross multiply
    104,153.31x = 143,734.23 × 63,889.29
  4. Step 4: Simplify right side
    104,153.31x = 9,183,077,903.40
  5. Step 5: Solve for x
    x = 9,183,077,903.40/104,153.31
  6. Step 6: Final answer
    x = 88,168.85

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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.