Home / 190,558.72-262,986.80-105,703.20

Finding the Fourth Proportional to 190,558.72, 262,986.80 and 105,703.20

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Solution

The fourth proportional to 190,558.72, 262,986.80 and 105,703.20 is: 145,879.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,558.72 : 262,986.80 = 105,703.20 : x
  2. Step 2: Convert to fraction form
    190,558.72/262,986.80 = 105,703.20/x
  3. Step 3: Cross multiply
    190,558.72x = 262,986.80 × 105,703.20
  4. Step 4: Simplify right side
    190,558.72x = 27,798,546,317.76
  5. Step 5: Solve for x
    x = 27,798,546,317.76/190,558.72
  6. Step 6: Final answer
    x = 145,879.16

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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.