Home / 141,801.53-195,690.30-78,143.45

Finding the Fourth Proportional to 141,801.53, 195,690.30 and 78,143.45

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Solution

The fourth proportional to 141,801.53, 195,690.30 and 78,143.45 is: 107,840.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,801.53 : 195,690.30 = 78,143.45 : x
  2. Step 2: Convert to fraction form
    141,801.53/195,690.30 = 78,143.45/x
  3. Step 3: Cross multiply
    141,801.53x = 195,690.30 × 78,143.45
  4. Step 4: Simplify right side
    141,801.53x = 15,291,915,173.54
  5. Step 5: Solve for x
    x = 15,291,915,173.54/141,801.53
  6. Step 6: Final answer
    x = 107,840.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.