Home / 143,734.98-196,917.63-138,347.87

Finding the Fourth Proportional to 143,734.98, 196,917.63 and 138,347.87

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Solution

The fourth proportional to 143,734.98, 196,917.63 and 138,347.87 is: 189,537.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,734.98 : 196,917.63 = 138,347.87 : x
  2. Step 2: Convert to fraction form
    143,734.98/196,917.63 = 138,347.87/x
  3. Step 3: Cross multiply
    143,734.98x = 196,917.63 × 138,347.87
  4. Step 4: Simplify right side
    143,734.98x = 27,243,133,837.78
  5. Step 5: Solve for x
    x = 27,243,133,837.78/143,734.98
  6. Step 6: Final answer
    x = 189,537.26

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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.