Home / 143,460.87-214,966.35-90,759.03

Finding the Fourth Proportional to 143,460.87, 214,966.35 and 90,759.03

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Solution

The fourth proportional to 143,460.87, 214,966.35 and 90,759.03 is: 135,996.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,460.87 : 214,966.35 = 90,759.03 : x
  2. Step 2: Convert to fraction form
    143,460.87/214,966.35 = 90,759.03/x
  3. Step 3: Cross multiply
    143,460.87x = 214,966.35 × 90,759.03
  4. Step 4: Simplify right side
    143,460.87x = 19,510,137,408.64
  5. Step 5: Solve for x
    x = 19,510,137,408.64/143,460.87
  6. Step 6: Final answer
    x = 135,996.23

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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.