Home / 172,682.40-258,505.20-102,525.60

Finding the Fourth Proportional to 172,682.40, 258,505.20 and 102,525.60

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Solution

The fourth proportional to 172,682.40, 258,505.20 and 102,525.60 is: 153,480.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,682.40 : 258,505.20 = 102,525.60 : x
  2. Step 2: Convert to fraction form
    172,682.40/258,505.20 = 102,525.60/x
  3. Step 3: Cross multiply
    172,682.40x = 258,505.20 × 102,525.60
  4. Step 4: Simplify right side
    172,682.40x = 26,503,400,733.12
  5. Step 5: Solve for x
    x = 26,503,400,733.12/172,682.40
  6. Step 6: Final answer
    x = 153,480.61

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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.