Home / 127,153.80-190,732.14-38,408.04

Finding the Fourth Proportional to 127,153.80, 190,732.14 and 38,408.04

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Solution

The fourth proportional to 127,153.80, 190,732.14 and 38,408.04 is: 57,612.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,153.80 : 190,732.14 = 38,408.04 : x
  2. Step 2: Convert to fraction form
    127,153.80/190,732.14 = 38,408.04/x
  3. Step 3: Cross multiply
    127,153.80x = 190,732.14 × 38,408.04
  4. Step 4: Simplify right side
    127,153.80x = 7,325,647,662.41
  5. Step 5: Solve for x
    x = 7,325,647,662.41/127,153.80
  6. Step 6: Final answer
    x = 57,612.49

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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.