Home / 154,607.94-213,788.43-122,721.48

Finding the Fourth Proportional to 154,607.94, 213,788.43 and 122,721.48

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Solution

The fourth proportional to 154,607.94, 213,788.43 and 122,721.48 is: 169,696.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,607.94 : 213,788.43 = 122,721.48 : x
  2. Step 2: Convert to fraction form
    154,607.94/213,788.43 = 122,721.48/x
  3. Step 3: Cross multiply
    154,607.94x = 213,788.43 × 122,721.48
  4. Step 4: Simplify right side
    154,607.94x = 26,236,432,536.48
  5. Step 5: Solve for x
    x = 26,236,432,536.48/154,607.94
  6. Step 6: Final answer
    x = 169,696.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.