Home / 148,921.21-205,512.24-80,938.33

Finding the Fourth Proportional to 148,921.21, 205,512.24 and 80,938.33

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Solution

The fourth proportional to 148,921.21, 205,512.24 and 80,938.33 is: 111,695.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,921.21 : 205,512.24 = 80,938.33 : x
  2. Step 2: Convert to fraction form
    148,921.21/205,512.24 = 80,938.33/x
  3. Step 3: Cross multiply
    148,921.21x = 205,512.24 × 80,938.33
  4. Step 4: Simplify right side
    148,921.21x = 16,633,817,500.16
  5. Step 5: Solve for x
    x = 16,633,817,500.16/148,921.21
  6. Step 6: Final answer
    x = 111,695.42

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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.