Home / 130,863.03-195,408.05-103,906.53

Finding the Fourth Proportional to 130,863.03, 195,408.05 and 103,906.53

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Solution

The fourth proportional to 130,863.03, 195,408.05 and 103,906.53 is: 155,155.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,863.03 : 195,408.05 = 103,906.53 : x
  2. Step 2: Convert to fraction form
    130,863.03/195,408.05 = 103,906.53/x
  3. Step 3: Cross multiply
    130,863.03x = 195,408.05 × 103,906.53
  4. Step 4: Simplify right side
    130,863.03x = 20,304,171,890.03
  5. Step 5: Solve for x
    x = 20,304,171,890.03/130,863.03
  6. Step 6: Final answer
    x = 155,155.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.