Home / 154,964.49-213,608.38-101,222.61

Finding the Fourth Proportional to 154,964.49, 213,608.38 and 101,222.61

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Solution

The fourth proportional to 154,964.49, 213,608.38 and 101,222.61 is: 139,528.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,964.49 : 213,608.38 = 101,222.61 : x
  2. Step 2: Convert to fraction form
    154,964.49/213,608.38 = 101,222.61/x
  3. Step 3: Cross multiply
    154,964.49x = 213,608.38 × 101,222.61
  4. Step 4: Simplify right side
    154,964.49x = 21,621,997,741.47
  5. Step 5: Solve for x
    x = 21,621,997,741.47/154,964.49
  6. Step 6: Final answer
    x = 139,528.73

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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.