Home / 128,418.21-192,558.06-58,259.25

Finding the Fourth Proportional to 128,418.21, 192,558.06 and 58,259.25

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Solution

The fourth proportional to 128,418.21, 192,558.06 and 58,259.25 is: 87,357.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,418.21 : 192,558.06 = 58,259.25 : x
  2. Step 2: Convert to fraction form
    128,418.21/192,558.06 = 58,259.25/x
  3. Step 3: Cross multiply
    128,418.21x = 192,558.06 × 58,259.25
  4. Step 4: Simplify right side
    128,418.21x = 11,218,288,157.06
  5. Step 5: Solve for x
    x = 11,218,288,157.06/128,418.21
  6. Step 6: Final answer
    x = 87,357.46

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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.