Home / 143,187.42-197,620.20-103,034.10

Finding the Fourth Proportional to 143,187.42, 197,620.20 and 103,034.10

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Solution

The fourth proportional to 143,187.42, 197,620.20 and 103,034.10 is: 142,202.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,187.42 : 197,620.20 = 103,034.10 : x
  2. Step 2: Convert to fraction form
    143,187.42/197,620.20 = 103,034.10/x
  3. Step 3: Cross multiply
    143,187.42x = 197,620.20 × 103,034.10
  4. Step 4: Simplify right side
    143,187.42x = 20,361,619,448.82
  5. Step 5: Solve for x
    x = 20,361,619,448.82/143,187.42
  6. Step 6: Final answer
    x = 142,202.57

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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.