Home / 143,009.28-214,570.35-54,286.34

Finding the Fourth Proportional to 143,009.28, 214,570.35 and 54,286.34

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Solution

The fourth proportional to 143,009.28, 214,570.35 and 54,286.34 is: 81,450.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,009.28 : 214,570.35 = 54,286.34 : x
  2. Step 2: Convert to fraction form
    143,009.28/214,570.35 = 54,286.34/x
  3. Step 3: Cross multiply
    143,009.28x = 214,570.35 × 54,286.34
  4. Step 4: Simplify right side
    143,009.28x = 11,648,237,901.17
  5. Step 5: Solve for x
    x = 11,648,237,901.17/143,009.28
  6. Step 6: Final answer
    x = 81,450.92

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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.