Home / 154,981.63-213,819.64-101,297.64

Finding the Fourth Proportional to 154,981.63, 213,819.64 and 101,297.64

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Solution

The fourth proportional to 154,981.63, 213,819.64 and 101,297.64 is: 139,754.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,981.63 : 213,819.64 = 101,297.64 : x
  2. Step 2: Convert to fraction form
    154,981.63/213,819.64 = 101,297.64/x
  3. Step 3: Cross multiply
    154,981.63x = 213,819.64 × 101,297.64
  4. Step 4: Simplify right side
    154,981.63x = 21,659,424,917.65
  5. Step 5: Solve for x
    x = 21,659,424,917.65/154,981.63
  6. Step 6: Final answer
    x = 139,754.79

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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.