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Finding the Fourth Proportional to 104,555.93, 156,745.73 and 45,347

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Solution

The fourth proportional to 104,555.93, 156,745.73 and 45,347 is: 67,982.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,555.93 : 156,745.73 = 45,347 : x
  2. Step 2: Convert to fraction form
    104,555.93/156,745.73 = 45,347/x
  3. Step 3: Cross multiply
    104,555.93x = 156,745.73 × 45,347
  4. Step 4: Simplify right side
    104,555.93x = 7,107,948,618.31
  5. Step 5: Solve for x
    x = 7,107,948,618.31/104,555.93
  6. Step 6: Final answer
    x = 67,982.26

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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.