Home / 221,786.64-306,065.34-121,184.64

Finding the Fourth Proportional to 221,786.64, 306,065.34 and 121,184.64

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Solution

The fourth proportional to 221,786.64, 306,065.34 and 121,184.64 is: 167,234.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,786.64 : 306,065.34 = 121,184.64 : x
  2. Step 2: Convert to fraction form
    221,786.64/306,065.34 = 121,184.64/x
  3. Step 3: Cross multiply
    221,786.64x = 306,065.34 × 121,184.64
  4. Step 4: Simplify right side
    221,786.64x = 37,090,418,044.38
  5. Step 5: Solve for x
    x = 37,090,418,044.38/221,786.64
  6. Step 6: Final answer
    x = 167,234.68

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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.