Home / 128,544.54-192,481.29-103,447.50

Finding the Fourth Proportional to 128,544.54, 192,481.29 and 103,447.50

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Solution

The fourth proportional to 128,544.54, 192,481.29 and 103,447.50 is: 154,901.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,544.54 : 192,481.29 = 103,447.50 : x
  2. Step 2: Convert to fraction form
    128,544.54/192,481.29 = 103,447.50/x
  3. Step 3: Cross multiply
    128,544.54x = 192,481.29 × 103,447.50
  4. Step 4: Simplify right side
    128,544.54x = 19,911,708,247.28
  5. Step 5: Solve for x
    x = 19,911,708,247.28/128,544.54
  6. Step 6: Final answer
    x = 154,901.24

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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.