Home / 99,023.20-148,556.40-28,896.80

Finding the Fourth Proportional to 99,023.20, 148,556.40 and 28,896.80

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Solution

The fourth proportional to 99,023.20, 148,556.40 and 28,896.80 is: 43,351.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,023.20 : 148,556.40 = 28,896.80 : x
  2. Step 2: Convert to fraction form
    99,023.20/148,556.40 = 28,896.80/x
  3. Step 3: Cross multiply
    99,023.20x = 148,556.40 × 28,896.80
  4. Step 4: Simplify right side
    99,023.20x = 4,292,804,579.52
  5. Step 5: Solve for x
    x = 4,292,804,579.52/99,023.20
  6. Step 6: Final answer
    x = 43,351.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.