Home / 135,421.63-203,021.61-51,133.97

Finding the Fourth Proportional to 135,421.63, 203,021.61 and 51,133.97

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Solution

The fourth proportional to 135,421.63, 203,021.61 and 51,133.97 is: 76,659.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,421.63 : 203,021.61 = 51,133.97 : x
  2. Step 2: Convert to fraction form
    135,421.63/203,021.61 = 51,133.97/x
  3. Step 3: Cross multiply
    135,421.63x = 203,021.61 × 51,133.97
  4. Step 4: Simplify right side
    135,421.63x = 10,381,300,520.34
  5. Step 5: Solve for x
    x = 10,381,300,520.34/135,421.63
  6. Step 6: Final answer
    x = 76,659.10

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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.