Home / 143,638.88-215,649.07-122,713.34

Finding the Fourth Proportional to 143,638.88, 215,649.07 and 122,713.34

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Solution

The fourth proportional to 143,638.88, 215,649.07 and 122,713.34 is: 184,232.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,638.88 : 215,649.07 = 122,713.34 : x
  2. Step 2: Convert to fraction form
    143,638.88/215,649.07 = 122,713.34/x
  3. Step 3: Cross multiply
    143,638.88x = 215,649.07 × 122,713.34
  4. Step 4: Simplify right side
    143,638.88x = 26,463,016,262.57
  5. Step 5: Solve for x
    x = 26,463,016,262.57/143,638.88
  6. Step 6: Final answer
    x = 184,232.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.