Home / 172,795.89-238,550.84-121,271.54

Finding the Fourth Proportional to 172,795.89, 238,550.84 and 121,271.54

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Solution

The fourth proportional to 172,795.89, 238,550.84 and 121,271.54 is: 167,419.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,795.89 : 238,550.84 = 121,271.54 : x
  2. Step 2: Convert to fraction form
    172,795.89/238,550.84 = 121,271.54/x
  3. Step 3: Cross multiply
    172,795.89x = 238,550.84 × 121,271.54
  4. Step 4: Simplify right side
    172,795.89x = 28,929,425,935.98
  5. Step 5: Solve for x
    x = 28,929,425,935.98/172,795.89
  6. Step 6: Final answer
    x = 167,419.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.