Home / 142,528.87-196,710.60-82,087.75

Finding the Fourth Proportional to 142,528.87, 196,710.60 and 82,087.75

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Solution

The fourth proportional to 142,528.87, 196,710.60 and 82,087.75 is: 113,293.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,528.87 : 196,710.60 = 82,087.75 : x
  2. Step 2: Convert to fraction form
    142,528.87/196,710.60 = 82,087.75/x
  3. Step 3: Cross multiply
    142,528.87x = 196,710.60 × 82,087.75
  4. Step 4: Simplify right side
    142,528.87x = 16,147,530,555.15
  5. Step 5: Solve for x
    x = 16,147,530,555.15/142,528.87
  6. Step 6: Final answer
    x = 113,293.05

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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.