Home / 121,391.62-181,964.63-50,215.91

Finding the Fourth Proportional to 121,391.62, 181,964.63 and 50,215.91

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Solution

The fourth proportional to 121,391.62, 181,964.63 and 50,215.91 is: 75,273.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,391.62 : 181,964.63 = 50,215.91 : x
  2. Step 2: Convert to fraction form
    121,391.62/181,964.63 = 50,215.91/x
  3. Step 3: Cross multiply
    121,391.62x = 181,964.63 × 50,215.91
  4. Step 4: Simplify right side
    121,391.62x = 9,137,518,698.98
  5. Step 5: Solve for x
    x = 9,137,518,698.98/121,391.62
  6. Step 6: Final answer
    x = 75,273.06

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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.