Home / 190,317.76-262,619.40-105,418.96

Finding the Fourth Proportional to 190,317.76, 262,619.40 and 105,418.96

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Solution

The fourth proportional to 190,317.76, 262,619.40 and 105,418.96 is: 145,467.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,317.76 : 262,619.40 = 105,418.96 : x
  2. Step 2: Convert to fraction form
    190,317.76/262,619.40 = 105,418.96/x
  3. Step 3: Cross multiply
    190,317.76x = 262,619.40 × 105,418.96
  4. Step 4: Simplify right side
    190,317.76x = 27,685,064,023.82
  5. Step 5: Solve for x
    x = 27,685,064,023.82/190,317.76
  6. Step 6: Final answer
    x = 145,467.58

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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.