Home / 190,154.82-262,412.75-102,939.69

Finding the Fourth Proportional to 190,154.82, 262,412.75 and 102,939.69

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Solution

The fourth proportional to 190,154.82, 262,412.75 and 102,939.69 is: 142,056.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,154.82 : 262,412.75 = 102,939.69 : x
  2. Step 2: Convert to fraction form
    190,154.82/262,412.75 = 102,939.69/x
  3. Step 3: Cross multiply
    190,154.82x = 262,412.75 × 102,939.69
  4. Step 4: Simplify right side
    190,154.82x = 27,012,687,137.05
  5. Step 5: Solve for x
    x = 27,012,687,137.05/190,154.82
  6. Step 6: Final answer
    x = 142,056.28

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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.