Home / 143,296.43-197,540.64-100,141.93

Finding the Fourth Proportional to 143,296.43, 197,540.64 and 100,141.93

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Solution

The fourth proportional to 143,296.43, 197,540.64 and 100,141.93 is: 138,050.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,296.43 : 197,540.64 = 100,141.93 : x
  2. Step 2: Convert to fraction form
    143,296.43/197,540.64 = 100,141.93/x
  3. Step 3: Cross multiply
    143,296.43x = 197,540.64 × 100,141.93
  4. Step 4: Simplify right side
    143,296.43x = 19,782,101,189.96
  5. Step 5: Solve for x
    x = 19,782,101,189.96/143,296.43
  6. Step 6: Final answer
    x = 138,050.21

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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.