Home / 172,106.20-258,260.82-72,283.96

Finding the Fourth Proportional to 172,106.20, 258,260.82 and 72,283.96

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Solution

The fourth proportional to 172,106.20, 258,260.82 and 72,283.96 is: 108,468.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,106.20 : 258,260.82 = 72,283.96 : x
  2. Step 2: Convert to fraction form
    172,106.20/258,260.82 = 72,283.96/x
  3. Step 3: Cross multiply
    172,106.20x = 258,260.82 × 72,283.96
  4. Step 4: Simplify right side
    172,106.20x = 18,668,114,782.45
  5. Step 5: Solve for x
    x = 18,668,114,782.45/172,106.20
  6. Step 6: Final answer
    x = 108,468.58

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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.