Home / 210,011.78-289,815.09-114,516.43

Finding the Fourth Proportional to 210,011.78, 289,815.09 and 114,516.43

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Solution

The fourth proportional to 210,011.78, 289,815.09 and 114,516.43 is: 158,032.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,011.78 : 289,815.09 = 114,516.43 : x
  2. Step 2: Convert to fraction form
    210,011.78/289,815.09 = 114,516.43/x
  3. Step 3: Cross multiply
    210,011.78x = 289,815.09 × 114,516.43
  4. Step 4: Simplify right side
    210,011.78x = 33,188,589,466.93
  5. Step 5: Solve for x
    x = 33,188,589,466.93/210,011.78
  6. Step 6: Final answer
    x = 158,032.04

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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.