Home / 190,533.65-262,936-105,648.53

Finding the Fourth Proportional to 190,533.65, 262,936 and 105,648.53

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Solution

The fourth proportional to 190,533.65, 262,936 and 105,648.53 is: 145,794.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,533.65 : 262,936 = 105,648.53 : x
  2. Step 2: Convert to fraction form
    190,533.65/262,936 = 105,648.53/x
  3. Step 3: Cross multiply
    190,533.65x = 262,936 × 105,648.53
  4. Step 4: Simplify right side
    190,533.65x = 27,778,801,884.08
  5. Step 5: Solve for x
    x = 27,778,801,884.08/190,533.65
  6. Step 6: Final answer
    x = 145,794.73

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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.