Home / 172,386.20-258,579.30-113,288.60

Finding the Fourth Proportional to 172,386.20, 258,579.30 and 113,288.60

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Solution

The fourth proportional to 172,386.20, 258,579.30 and 113,288.60 is: 169,932.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,386.20 : 258,579.30 = 113,288.60 : x
  2. Step 2: Convert to fraction form
    172,386.20/258,579.30 = 113,288.60/x
  3. Step 3: Cross multiply
    172,386.20x = 258,579.30 × 113,288.60
  4. Step 4: Simplify right side
    172,386.20x = 29,294,086,885.98
  5. Step 5: Solve for x
    x = 29,294,086,885.98/172,386.20
  6. Step 6: Final answer
    x = 169,932.90

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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.