Home / 243,206.12-335,610.42-135,782.97

Finding the Fourth Proportional to 243,206.12, 335,610.42 and 135,782.97

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Solution

The fourth proportional to 243,206.12, 335,610.42 and 135,782.97 is: 187,372.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,206.12 : 335,610.42 = 135,782.97 : x
  2. Step 2: Convert to fraction form
    243,206.12/335,610.42 = 135,782.97/x
  3. Step 3: Cross multiply
    243,206.12x = 335,610.42 × 135,782.97
  4. Step 4: Simplify right side
    243,206.12x = 45,570,179,590.55
  5. Step 5: Solve for x
    x = 45,570,179,590.55/243,206.12
  6. Step 6: Final answer
    x = 187,372.67

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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.