Home / 148,840.73-205,399.39-80,857.16

Finding the Fourth Proportional to 148,840.73, 205,399.39 and 80,857.16

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Solution

The fourth proportional to 148,840.73, 205,399.39 and 80,857.16 is: 111,582.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,840.73 : 205,399.39 = 80,857.16 : x
  2. Step 2: Convert to fraction form
    148,840.73/205,399.39 = 80,857.16/x
  3. Step 3: Cross multiply
    148,840.73x = 205,399.39 × 80,857.16
  4. Step 4: Simplify right side
    148,840.73x = 16,608,010,680.10
  5. Step 5: Solve for x
    x = 16,608,010,680.10/148,840.73
  6. Step 6: Final answer
    x = 111,582.43

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1.5x scale

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.