Home / 105,401.36-157,758.30-57,297.60

Finding the Fourth Proportional to 105,401.36, 157,758.30 and 57,297.60

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Solution

The fourth proportional to 105,401.36, 157,758.30 and 57,297.60 is: 85,759.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,401.36 : 157,758.30 = 57,297.60 : x
  2. Step 2: Convert to fraction form
    105,401.36/157,758.30 = 57,297.60/x
  3. Step 3: Cross multiply
    105,401.36x = 157,758.30 × 57,297.60
  4. Step 4: Simplify right side
    105,401.36x = 9,039,171,970.08
  5. Step 5: Solve for x
    x = 9,039,171,970.08/105,401.36
  6. Step 6: Final answer
    x = 85,759.54

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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.