Home / 141,830.37-195,732.18-81,403.56

Finding the Fourth Proportional to 141,830.37, 195,732.18 and 81,403.56

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Solution

The fourth proportional to 141,830.37, 195,732.18 and 81,403.56 is: 112,340.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,830.37 : 195,732.18 = 81,403.56 : x
  2. Step 2: Convert to fraction form
    141,830.37/195,732.18 = 81,403.56/x
  3. Step 3: Cross multiply
    141,830.37x = 195,732.18 × 81,403.56
  4. Step 4: Simplify right side
    141,830.37x = 15,933,296,258.56
  5. Step 5: Solve for x
    x = 15,933,296,258.56/141,830.37
  6. Step 6: Final answer
    x = 112,340.51

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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.