Home / 148,647.66-205,132.75-80,662.92

Finding the Fourth Proportional to 148,647.66, 205,132.75 and 80,662.92

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Solution

The fourth proportional to 148,647.66, 205,132.75 and 80,662.92 is: 111,314.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,647.66 : 205,132.75 = 80,662.92 : x
  2. Step 2: Convert to fraction form
    148,647.66/205,132.75 = 80,662.92/x
  3. Step 3: Cross multiply
    148,647.66x = 205,132.75 × 80,662.92
  4. Step 4: Simplify right side
    148,647.66x = 16,546,606,400.97
  5. Step 5: Solve for x
    x = 16,546,606,400.97/148,647.66
  6. Step 6: Final answer
    x = 111,314.27

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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.