Home / 212,819.19-319,322.82-111,593.07

Finding the Fourth Proportional to 212,819.19, 319,322.82 and 111,593.07

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Solution

The fourth proportional to 212,819.19, 319,322.82 and 111,593.07 is: 167,438.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,819.19 : 319,322.82 = 111,593.07 : x
  2. Step 2: Convert to fraction form
    212,819.19/319,322.82 = 111,593.07/x
  3. Step 3: Cross multiply
    212,819.19x = 319,322.82 × 111,593.07
  4. Step 4: Simplify right side
    212,819.19x = 35,634,213,804.86
  5. Step 5: Solve for x
    x = 35,634,213,804.86/212,819.19
  6. Step 6: Final answer
    x = 167,438.91

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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.