Home / 172,420.27-258,501.58-118,959.73

Finding the Fourth Proportional to 172,420.27, 258,501.58 and 118,959.73

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Solution

The fourth proportional to 172,420.27, 258,501.58 and 118,959.73 is: 178,350.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,420.27 : 258,501.58 = 118,959.73 : x
  2. Step 2: Convert to fraction form
    172,420.27/258,501.58 = 118,959.73/x
  3. Step 3: Cross multiply
    172,420.27x = 258,501.58 × 118,959.73
  4. Step 4: Simplify right side
    172,420.27x = 30,751,278,161.37
  5. Step 5: Solve for x
    x = 30,751,278,161.37/172,420.27
  6. Step 6: Final answer
    x = 178,350.71

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1.5x scale

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.