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Finding the Fourth Proportional to 104,576, 156,775.80 and 45,367.12

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Solution

The fourth proportional to 104,576, 156,775.80 and 45,367.12 is: 68,012.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,576 : 156,775.80 = 45,367.12 : x
  2. Step 2: Convert to fraction form
    104,576/156,775.80 = 45,367.12/x
  3. Step 3: Cross multiply
    104,576x = 156,775.80 × 45,367.12
  4. Step 4: Simplify right side
    104,576x = 7,112,466,531.70
  5. Step 5: Solve for x
    x = 7,112,466,531.70/104,576
  6. Step 6: Final answer
    x = 68,012.42

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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.