Home / 202,212.20-279,052.05-111,573.80

Finding the Fourth Proportional to 202,212.20, 279,052.05 and 111,573.80

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Solution

The fourth proportional to 202,212.20, 279,052.05 and 111,573.80 is: 153,971.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,212.20 : 279,052.05 = 111,573.80 : x
  2. Step 2: Convert to fraction form
    202,212.20/279,052.05 = 111,573.80/x
  3. Step 3: Cross multiply
    202,212.20x = 279,052.05 × 111,573.80
  4. Step 4: Simplify right side
    202,212.20x = 31,134,897,616.29
  5. Step 5: Solve for x
    x = 31,134,897,616.29/202,212.20
  6. Step 6: Final answer
    x = 153,971.41

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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.