Home / 190,418.88-262,884.24-130,080

Finding the Fourth Proportional to 190,418.88, 262,884.24 and 130,080

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Solution

The fourth proportional to 190,418.88, 262,884.24 and 130,080 is: 179,582.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,418.88 : 262,884.24 = 130,080 : x
  2. Step 2: Convert to fraction form
    190,418.88/262,884.24 = 130,080/x
  3. Step 3: Cross multiply
    190,418.88x = 262,884.24 × 130,080
  4. Step 4: Simplify right side
    190,418.88x = 34,195,981,939.20
  5. Step 5: Solve for x
    x = 34,195,981,939.20/190,418.88
  6. Step 6: Final answer
    x = 179,582.94

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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.