Home / 190,873.52-285,740.04-115,766

Finding the Fourth Proportional to 190,873.52, 285,740.04 and 115,766

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Solution

The fourth proportional to 190,873.52, 285,740.04 and 115,766 is: 173,303.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,873.52 : 285,740.04 = 115,766 : x
  2. Step 2: Convert to fraction form
    190,873.52/285,740.04 = 115,766/x
  3. Step 3: Cross multiply
    190,873.52x = 285,740.04 × 115,766
  4. Step 4: Simplify right side
    190,873.52x = 33,078,981,470.64
  5. Step 5: Solve for x
    x = 33,078,981,470.64/190,873.52
  6. Step 6: Final answer
    x = 173,303.15

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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.