Home / 143,082.21-214,627.89-71,966.03

Finding the Fourth Proportional to 143,082.21, 214,627.89 and 71,966.03

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Solution

The fourth proportional to 143,082.21, 214,627.89 and 71,966.03 is: 107,951.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,082.21 : 214,627.89 = 71,966.03 : x
  2. Step 2: Convert to fraction form
    143,082.21/214,627.89 = 71,966.03/x
  3. Step 3: Cross multiply
    143,082.21x = 214,627.89 × 71,966.03
  4. Step 4: Simplify right side
    143,082.21x = 15,445,917,170.58
  5. Step 5: Solve for x
    x = 15,445,917,170.58/143,082.21
  6. Step 6: Final answer
    x = 107,951.35

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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.