Home / 219,634.59-303,102.77-121,519.38

Finding the Fourth Proportional to 219,634.59, 303,102.77 and 121,519.38

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Solution

The fourth proportional to 219,634.59, 303,102.77 and 121,519.38 is: 167,700.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,634.59 : 303,102.77 = 121,519.38 : x
  2. Step 2: Convert to fraction form
    219,634.59/303,102.77 = 121,519.38/x
  3. Step 3: Cross multiply
    219,634.59x = 303,102.77 × 121,519.38
  4. Step 4: Simplify right side
    219,634.59x = 36,832,860,079.09
  5. Step 5: Solve for x
    x = 36,832,860,079.09/219,634.59
  6. Step 6: Final answer
    x = 167,700.63

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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.