Home / 148,682.20-205,182.05-80,699.27

Finding the Fourth Proportional to 148,682.20, 205,182.05 and 80,699.27

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Solution

The fourth proportional to 148,682.20, 205,182.05 and 80,699.27 is: 111,365.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,682.20 : 205,182.05 = 80,699.27 : x
  2. Step 2: Convert to fraction form
    148,682.20/205,182.05 = 80,699.27/x
  3. Step 3: Cross multiply
    148,682.20x = 205,182.05 × 80,699.27
  4. Step 4: Simplify right side
    148,682.20x = 16,558,041,652.10
  5. Step 5: Solve for x
    x = 16,558,041,652.10/148,682.20
  6. Step 6: Final answer
    x = 111,365.33

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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.