Home / 190,418.72-262,778.04-105,535.85

Finding the Fourth Proportional to 190,418.72, 262,778.04 and 105,535.85

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Solution

The fourth proportional to 190,418.72, 262,778.04 and 105,535.85 is: 145,639.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,418.72 : 262,778.04 = 105,535.85 : x
  2. Step 2: Convert to fraction form
    190,418.72/262,778.04 = 105,535.85/x
  3. Step 3: Cross multiply
    190,418.72x = 262,778.04 × 105,535.85
  4. Step 4: Simplify right side
    190,418.72x = 27,732,502,498.84
  5. Step 5: Solve for x
    x = 27,732,502,498.84/190,418.72
  6. Step 6: Final answer
    x = 145,639.58

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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.