Home / 181,715.94-250,872.30-121,485.96

Finding the Fourth Proportional to 181,715.94, 250,872.30 and 121,485.96

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Solution

The fourth proportional to 181,715.94, 250,872.30 and 121,485.96 is: 167,720.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,715.94 : 250,872.30 = 121,485.96 : x
  2. Step 2: Convert to fraction form
    181,715.94/250,872.30 = 121,485.96/x
  3. Step 3: Cross multiply
    181,715.94x = 250,872.30 × 121,485.96
  4. Step 4: Simplify right side
    181,715.94x = 30,477,462,202.91
  5. Step 5: Solve for x
    x = 30,477,462,202.91/181,715.94
  6. Step 6: Final answer
    x = 167,720.36

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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.