Home / 192,131.40-265,140.30-111,578.72

Finding the Fourth Proportional to 192,131.40, 265,140.30 and 111,578.72

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Solution

The fourth proportional to 192,131.40, 265,140.30 and 111,578.72 is: 153,978.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,131.40 : 265,140.30 = 111,578.72 : x
  2. Step 2: Convert to fraction form
    192,131.40/265,140.30 = 111,578.72/x
  3. Step 3: Cross multiply
    192,131.40x = 265,140.30 × 111,578.72
  4. Step 4: Simplify right side
    192,131.40x = 29,584,013,968.71
  5. Step 5: Solve for x
    x = 29,584,013,968.71/192,131.40
  6. Step 6: Final answer
    x = 153,978.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.