Home / 143,229.87-197,514.05-121,696.02

Finding the Fourth Proportional to 143,229.87, 197,514.05 and 121,696.02

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Solution

The fourth proportional to 143,229.87, 197,514.05 and 121,696.02 is: 167,818.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,229.87 : 197,514.05 = 121,696.02 : x
  2. Step 2: Convert to fraction form
    143,229.87/197,514.05 = 121,696.02/x
  3. Step 3: Cross multiply
    143,229.87x = 197,514.05 × 121,696.02
  4. Step 4: Simplify right side
    143,229.87x = 24,036,673,170.60
  5. Step 5: Solve for x
    x = 24,036,673,170.60/143,229.87
  6. Step 6: Final answer
    x = 167,818.86

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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.