Home / 143,726.27-196,905.94-138,339.19

Finding the Fourth Proportional to 143,726.27, 196,905.94 and 138,339.19

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Solution

The fourth proportional to 143,726.27, 196,905.94 and 138,339.19 is: 189,525.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,726.27 : 196,905.94 = 138,339.19 : x
  2. Step 2: Convert to fraction form
    143,726.27/196,905.94 = 138,339.19/x
  3. Step 3: Cross multiply
    143,726.27x = 196,905.94 × 138,339.19
  4. Step 4: Simplify right side
    143,726.27x = 27,239,806,569.56
  5. Step 5: Solve for x
    x = 27,239,806,569.56/143,726.27
  6. Step 6: Final answer
    x = 189,525.59

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.