Home / 190,585.20-285,785.46-57,440.64

Finding the Fourth Proportional to 190,585.20, 285,785.46 and 57,440.64

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Solution

The fourth proportional to 190,585.20, 285,785.46 and 57,440.64 is: 86,133.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,585.20 : 285,785.46 = 57,440.64 : x
  2. Step 2: Convert to fraction form
    190,585.20/285,785.46 = 57,440.64/x
  3. Step 3: Cross multiply
    190,585.20x = 285,785.46 × 57,440.64
  4. Step 4: Simplify right side
    190,585.20x = 16,415,699,725.09
  5. Step 5: Solve for x
    x = 16,415,699,725.09/190,585.20
  6. Step 6: Final answer
    x = 86,133.13

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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.