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Finding the Fourth Proportional to 172,941.53, 259,491.11 and 88,760.81

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Solution

The fourth proportional to 172,941.53, 259,491.11 and 88,760.81 is: 133,181.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,941.53 : 259,491.11 = 88,760.81 : x
  2. Step 2: Convert to fraction form
    172,941.53/259,491.11 = 88,760.81/x
  3. Step 3: Cross multiply
    172,941.53x = 259,491.11 × 88,760.81
  4. Step 4: Simplify right side
    172,941.53x = 23,032,640,360.74
  5. Step 5: Solve for x
    x = 23,032,640,360.74/172,941.53
  6. Step 6: Final answer
    x = 133,181.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.