Home / 193,853.40-290,661.03-75,386.66

Finding the Fourth Proportional to 193,853.40, 290,661.03 and 75,386.66

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Solution

The fourth proportional to 193,853.40, 290,661.03 and 75,386.66 is: 113,033.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,853.40 : 290,661.03 = 75,386.66 : x
  2. Step 2: Convert to fraction form
    193,853.40/290,661.03 = 75,386.66/x
  3. Step 3: Cross multiply
    193,853.40x = 290,661.03 × 75,386.66
  4. Step 4: Simplify right side
    193,853.40x = 21,911,962,790.55
  5. Step 5: Solve for x
    x = 21,911,962,790.55/193,853.40
  6. Step 6: Final answer
    x = 113,033.68

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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.