Home / 109,478.31-164,144.56-39,348.51

Finding the Fourth Proportional to 109,478.31, 164,144.56 and 39,348.51

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Solution

The fourth proportional to 109,478.31, 164,144.56 and 39,348.51 is: 58,996.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,478.31 : 164,144.56 = 39,348.51 : x
  2. Step 2: Convert to fraction form
    109,478.31/164,144.56 = 39,348.51/x
  3. Step 3: Cross multiply
    109,478.31x = 164,144.56 × 39,348.51
  4. Step 4: Simplify right side
    109,478.31x = 6,458,843,860.61
  5. Step 5: Solve for x
    x = 6,458,843,860.61/109,478.31
  6. Step 6: Final answer
    x = 58,996.56

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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.