Home / 149,930.45-206,911.73-86,277.77

Finding the Fourth Proportional to 149,930.45, 206,911.73 and 86,277.77

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Solution

The fourth proportional to 149,930.45, 206,911.73 and 86,277.77 is: 119,067.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,930.45 : 206,911.73 = 86,277.77 : x
  2. Step 2: Convert to fraction form
    149,930.45/206,911.73 = 86,277.77/x
  3. Step 3: Cross multiply
    149,930.45x = 206,911.73 × 86,277.77
  4. Step 4: Simplify right side
    149,930.45x = 17,851,882,219.85
  5. Step 5: Solve for x
    x = 17,851,882,219.85/149,930.45
  6. Step 6: Final answer
    x = 119,067.76

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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.