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Finding the Fourth Proportional to 115,563.98, 159,110.31 and 101,940.32

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Solution

The fourth proportional to 115,563.98, 159,110.31 and 101,940.32 is: 140,353.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,563.98 : 159,110.31 = 101,940.32 : x
  2. Step 2: Convert to fraction form
    115,563.98/159,110.31 = 101,940.32/x
  3. Step 3: Cross multiply
    115,563.98x = 159,110.31 × 101,940.32
  4. Step 4: Simplify right side
    115,563.98x = 16,219,755,121.15
  5. Step 5: Solve for x
    x = 16,219,755,121.15/115,563.98
  6. Step 6: Final answer
    x = 140,353.04

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1.5x scale

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.