Home / 170,690.88-235,556.64-99,076.80

Finding the Fourth Proportional to 170,690.88, 235,556.64 and 99,076.80

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Solution

The fourth proportional to 170,690.88, 235,556.64 and 99,076.80 is: 136,727.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,690.88 : 235,556.64 = 99,076.80 : x
  2. Step 2: Convert to fraction form
    170,690.88/235,556.64 = 99,076.80/x
  3. Step 3: Cross multiply
    170,690.88x = 235,556.64 × 99,076.80
  4. Step 4: Simplify right side
    170,690.88x = 23,338,198,109.95
  5. Step 5: Solve for x
    x = 23,338,198,109.95/170,690.88
  6. Step 6: Final answer
    x = 136,727.86

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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.