Home / 170,651.14-255,777.36-128,395.45

Finding the Fourth Proportional to 170,651.14, 255,777.36 and 128,395.45

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Solution

The fourth proportional to 170,651.14, 255,777.36 and 128,395.45 is: 192,443.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,651.14 : 255,777.36 = 128,395.45 : x
  2. Step 2: Convert to fraction form
    170,651.14/255,777.36 = 128,395.45/x
  3. Step 3: Cross multiply
    170,651.14x = 255,777.36 × 128,395.45
  4. Step 4: Simplify right side
    170,651.14x = 32,840,649,237.01
  5. Step 5: Solve for x
    x = 32,840,649,237.01/170,651.14
  6. Step 6: Final answer
    x = 192,443.19

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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.