Home / 143,546.22-198,085.34-83,112.57

Finding the Fourth Proportional to 143,546.22, 198,085.34 and 83,112.57

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Solution

The fourth proportional to 143,546.22, 198,085.34 and 83,112.57 is: 114,690.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,546.22 : 198,085.34 = 83,112.57 : x
  2. Step 2: Convert to fraction form
    143,546.22/198,085.34 = 83,112.57/x
  3. Step 3: Cross multiply
    143,546.22x = 198,085.34 × 83,112.57
  4. Step 4: Simplify right side
    143,546.22x = 16,463,381,894.51
  5. Step 5: Solve for x
    x = 16,463,381,894.51/143,546.22
  6. Step 6: Final answer
    x = 114,690.46

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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.