Home / 195,218.64-293,067.36-128,714.40

Finding the Fourth Proportional to 195,218.64, 293,067.36 and 128,714.40

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Solution

The fourth proportional to 195,218.64, 293,067.36 and 128,714.40 is: 193,229.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,218.64 : 293,067.36 = 128,714.40 : x
  2. Step 2: Convert to fraction form
    195,218.64/293,067.36 = 128,714.40/x
  3. Step 3: Cross multiply
    195,218.64x = 293,067.36 × 128,714.40
  4. Step 4: Simplify right side
    195,218.64x = 37,721,989,401.98
  5. Step 5: Solve for x
    x = 37,721,989,401.98/195,218.64
  6. Step 6: Final answer
    x = 193,229.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.