Home / 102,721.22-154,089.57-30,668.43

Finding the Fourth Proportional to 102,721.22, 154,089.57 and 30,668.43

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Solution

The fourth proportional to 102,721.22, 154,089.57 and 30,668.43 is: 46,004.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,721.22 : 154,089.57 = 30,668.43 : x
  2. Step 2: Convert to fraction form
    102,721.22/154,089.57 = 30,668.43/x
  3. Step 3: Cross multiply
    102,721.22x = 154,089.57 × 30,668.43
  4. Step 4: Simplify right side
    102,721.22x = 4,725,684,420.83
  5. Step 5: Solve for x
    x = 4,725,684,420.83/102,721.22
  6. Step 6: Final answer
    x = 46,004.95

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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.