Home / 209,634.78-314,501.31-69,393.36

Finding the Fourth Proportional to 209,634.78, 314,501.31 and 69,393.36

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Solution

The fourth proportional to 209,634.78, 314,501.31 and 69,393.36 is: 104,106.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,634.78 : 314,501.31 = 69,393.36 : x
  2. Step 2: Convert to fraction form
    209,634.78/314,501.31 = 69,393.36/x
  3. Step 3: Cross multiply
    209,634.78x = 314,501.31 × 69,393.36
  4. Step 4: Simplify right side
    209,634.78x = 21,824,302,625.30
  5. Step 5: Solve for x
    x = 21,824,302,625.30/209,634.78
  6. Step 6: Final answer
    x = 104,106.31

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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.