Home / 190,144.78-262,401.87-105,263.26

Finding the Fourth Proportional to 190,144.78, 262,401.87 and 105,263.26

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Solution

The fourth proportional to 190,144.78, 262,401.87 and 105,263.26 is: 145,264.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,144.78 : 262,401.87 = 105,263.26 : x
  2. Step 2: Convert to fraction form
    190,144.78/262,401.87 = 105,263.26/x
  3. Step 3: Cross multiply
    190,144.78x = 262,401.87 × 105,263.26
  4. Step 4: Simplify right side
    190,144.78x = 27,621,276,266.30
  5. Step 5: Solve for x
    x = 27,621,276,266.30/190,144.78
  6. Step 6: Final answer
    x = 145,264.45

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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.