Home / 143,741.70-198,365.73-82,497.72

Finding the Fourth Proportional to 143,741.70, 198,365.73 and 82,497.72

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Solution

The fourth proportional to 143,741.70, 198,365.73 and 82,497.72 is: 113,848.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,741.70 : 198,365.73 = 82,497.72 : x
  2. Step 2: Convert to fraction form
    143,741.70/198,365.73 = 82,497.72/x
  3. Step 3: Cross multiply
    143,741.70x = 198,365.73 × 82,497.72
  4. Step 4: Simplify right side
    143,741.70x = 16,364,720,451.14
  5. Step 5: Solve for x
    x = 16,364,720,451.14/143,741.70
  6. Step 6: Final answer
    x = 113,848.11

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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.