Home / 190,219.78-262,493.80-109,642.42

Finding the Fourth Proportional to 190,219.78, 262,493.80 and 109,642.42

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Solution

The fourth proportional to 190,219.78, 262,493.80 and 109,642.42 is: 151,301.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,219.78 : 262,493.80 = 109,642.42 : x
  2. Step 2: Convert to fraction form
    190,219.78/262,493.80 = 109,642.42/x
  3. Step 3: Cross multiply
    190,219.78x = 262,493.80 × 109,642.42
  4. Step 4: Simplify right side
    190,219.78x = 28,780,455,467.00
  5. Step 5: Solve for x
    x = 28,780,455,467.00/190,219.78
  6. Step 6: Final answer
    x = 151,301.07

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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.