Home / 135,966.67-203,513.29-72,628.42

Finding the Fourth Proportional to 135,966.67, 203,513.29 and 72,628.42

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Solution

The fourth proportional to 135,966.67, 203,513.29 and 72,628.42 is: 108,709.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,966.67 : 203,513.29 = 72,628.42 : x
  2. Step 2: Convert to fraction form
    135,966.67/203,513.29 = 72,628.42/x
  3. Step 3: Cross multiply
    135,966.67x = 203,513.29 × 72,628.42
  4. Step 4: Simplify right side
    135,966.67x = 14,780,848,701.70
  5. Step 5: Solve for x
    x = 14,780,848,701.70/135,966.67
  6. Step 6: Final answer
    x = 108,709.35

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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.