Home / 190,211.02-262,499.12-105,328.09

Finding the Fourth Proportional to 190,211.02, 262,499.12 and 105,328.09

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Solution

The fourth proportional to 190,211.02, 262,499.12 and 105,328.09 is: 145,357.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,211.02 : 262,499.12 = 105,328.09 : x
  2. Step 2: Convert to fraction form
    190,211.02/262,499.12 = 105,328.09/x
  3. Step 3: Cross multiply
    190,211.02x = 262,499.12 × 105,328.09
  4. Step 4: Simplify right side
    190,211.02x = 27,648,530,936.28
  5. Step 5: Solve for x
    x = 27,648,530,936.28/190,211.02
  6. Step 6: Final answer
    x = 145,357.15

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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.