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Finding the Fourth Proportional to 193,221.75, 266,648.74 and 116,730.21

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Solution

The fourth proportional to 193,221.75, 266,648.74 and 116,730.21 is: 161,089.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,221.75 : 266,648.74 = 116,730.21 : x
  2. Step 2: Convert to fraction form
    193,221.75/266,648.74 = 116,730.21/x
  3. Step 3: Cross multiply
    193,221.75x = 266,648.74 × 116,730.21
  4. Step 4: Simplify right side
    193,221.75x = 31,125,963,416.44
  5. Step 5: Solve for x
    x = 31,125,963,416.44/193,221.75
  6. Step 6: Final answer
    x = 161,089.34

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.