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Finding the Fourth Proportional to 148,745.16, 205,270.45 and 80,762.27

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Solution

The fourth proportional to 148,745.16, 205,270.45 and 80,762.27 is: 111,453.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,745.16 : 205,270.45 = 80,762.27 : x
  2. Step 2: Convert to fraction form
    148,745.16/205,270.45 = 80,762.27/x
  3. Step 3: Cross multiply
    148,745.16x = 205,270.45 × 80,762.27
  4. Step 4: Simplify right side
    148,745.16x = 16,578,106,731.95
  5. Step 5: Solve for x
    x = 16,578,106,731.95/148,745.16
  6. Step 6: Final answer
    x = 111,453.08

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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.