Home / 102,945.52-154,419.56-28,069.36

Finding the Fourth Proportional to 102,945.52, 154,419.56 and 28,069.36

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Solution

The fourth proportional to 102,945.52, 154,419.56 and 28,069.36 is: 42,104.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,945.52 : 154,419.56 = 28,069.36 : x
  2. Step 2: Convert to fraction form
    102,945.52/154,419.56 = 28,069.36/x
  3. Step 3: Cross multiply
    102,945.52x = 154,419.56 × 28,069.36
  4. Step 4: Simplify right side
    102,945.52x = 4,334,458,220.68
  5. Step 5: Solve for x
    x = 4,334,458,220.68/102,945.52
  6. Step 6: Final answer
    x = 42,104.39

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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.