Home / 171,913.71-257,923.35-82,071.06

Finding the Fourth Proportional to 171,913.71, 257,923.35 and 82,071.06

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Solution

The fourth proportional to 171,913.71, 257,923.35 and 82,071.06 is: 123,131.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,913.71 : 257,923.35 = 82,071.06 : x
  2. Step 2: Convert to fraction form
    171,913.71/257,923.35 = 82,071.06/x
  3. Step 3: Cross multiply
    171,913.71x = 257,923.35 × 82,071.06
  4. Step 4: Simplify right side
    171,913.71x = 21,168,042,733.25
  5. Step 5: Solve for x
    x = 21,168,042,733.25/171,913.71
  6. Step 6: Final answer
    x = 123,131.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.