Home / 143,086.60-214,338.30-73,005.40

Finding the Fourth Proportional to 143,086.60, 214,338.30 and 73,005.40

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Solution

The fourth proportional to 143,086.60, 214,338.30 and 73,005.40 is: 109,359.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,086.60 : 214,338.30 = 73,005.40 : x
  2. Step 2: Convert to fraction form
    143,086.60/214,338.30 = 73,005.40/x
  3. Step 3: Cross multiply
    143,086.60x = 214,338.30 × 73,005.40
  4. Step 4: Simplify right side
    143,086.60x = 15,647,853,326.82
  5. Step 5: Solve for x
    x = 15,647,853,326.82/143,086.60
  6. Step 6: Final answer
    x = 109,359.32

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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.