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Finding the Fourth Proportional to 117,235.62, 161,784.60 and 63,520.62

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Solution

The fourth proportional to 117,235.62, 161,784.60 and 63,520.62 is: 87,658.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,235.62 : 161,784.60 = 63,520.62 : x
  2. Step 2: Convert to fraction form
    117,235.62/161,784.60 = 63,520.62/x
  3. Step 3: Cross multiply
    117,235.62x = 161,784.60 × 63,520.62
  4. Step 4: Simplify right side
    117,235.62x = 10,276,656,971.93
  5. Step 5: Solve for x
    x = 10,276,656,971.93/117,235.62
  6. Step 6: Final answer
    x = 87,658.15

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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.