Home / 128,285.64-192,446.58-39,546.36

Finding the Fourth Proportional to 128,285.64, 192,446.58 and 39,546.36

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Solution

The fourth proportional to 128,285.64, 192,446.58 and 39,546.36 is: 59,325.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,285.64 : 192,446.58 = 39,546.36 : x
  2. Step 2: Convert to fraction form
    128,285.64/192,446.58 = 39,546.36/x
  3. Step 3: Cross multiply
    128,285.64x = 192,446.58 × 39,546.36
  4. Step 4: Simplify right side
    128,285.64x = 7,610,561,733.45
  5. Step 5: Solve for x
    x = 7,610,561,733.45/128,285.64
  6. Step 6: Final answer
    x = 59,325.13

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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.