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Finding the Fourth Proportional to 117,235.37, 161,784.25 and 63,520.37

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Solution

The fourth proportional to 117,235.37, 161,784.25 and 63,520.37 is: 87,657.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,235.37 : 161,784.25 = 63,520.37 : x
  2. Step 2: Convert to fraction form
    117,235.37/161,784.25 = 63,520.37/x
  3. Step 3: Cross multiply
    117,235.37x = 161,784.25 × 63,520.37
  4. Step 4: Simplify right side
    117,235.37x = 10,276,594,611.25
  5. Step 5: Solve for x
    x = 10,276,594,611.25/117,235.37
  6. Step 6: Final answer
    x = 87,657.80

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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.