Home / 102,943.52-154,416.56-28,067.36

Finding the Fourth Proportional to 102,943.52, 154,416.56 and 28,067.36

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Solution

The fourth proportional to 102,943.52, 154,416.56 and 28,067.36 is: 42,101.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,943.52 : 154,416.56 = 28,067.36 : x
  2. Step 2: Convert to fraction form
    102,943.52/154,416.56 = 28,067.36/x
  3. Step 3: Cross multiply
    102,943.52x = 154,416.56 × 28,067.36
  4. Step 4: Simplify right side
    102,943.52x = 4,334,065,179.48
  5. Step 5: Solve for x
    x = 4,334,065,179.48/102,943.52
  6. Step 6: Final answer
    x = 42,101.39

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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.