Home / 154,608.44-213,789.12-122,721.98

Finding the Fourth Proportional to 154,608.44, 213,789.12 and 122,721.98

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Solution

The fourth proportional to 154,608.44, 213,789.12 and 122,721.98 is: 169,697.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,608.44 : 213,789.12 = 122,721.98 : x
  2. Step 2: Convert to fraction form
    154,608.44/213,789.12 = 122,721.98/x
  3. Step 3: Cross multiply
    154,608.44x = 213,789.12 × 122,721.98
  4. Step 4: Simplify right side
    154,608.44x = 26,236,624,108.86
  5. Step 5: Solve for x
    x = 26,236,624,108.86/154,608.44
  6. Step 6: Final answer
    x = 169,697.23

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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.