Home / 135,441.14-186,910.36-75,012.96

Finding the Fourth Proportional to 135,441.14, 186,910.36 and 75,012.96

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Solution

The fourth proportional to 135,441.14, 186,910.36 and 75,012.96 is: 103,518.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,441.14 : 186,910.36 = 75,012.96 : x
  2. Step 2: Convert to fraction form
    135,441.14/186,910.36 = 75,012.96/x
  3. Step 3: Cross multiply
    135,441.14x = 186,910.36 × 75,012.96
  4. Step 4: Simplify right side
    135,441.14x = 14,020,699,556.94
  5. Step 5: Solve for x
    x = 14,020,699,556.94/135,441.14
  6. Step 6: Final answer
    x = 103,518.77

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1.5x scale

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.