Home / 170,940.21-256,205.50-79,632.56

Finding the Fourth Proportional to 170,940.21, 256,205.50 and 79,632.56

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Solution

The fourth proportional to 170,940.21, 256,205.50 and 79,632.56 is: 119,353.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,940.21 : 256,205.50 = 79,632.56 : x
  2. Step 2: Convert to fraction form
    170,940.21/256,205.50 = 79,632.56/x
  3. Step 3: Cross multiply
    170,940.21x = 256,205.50 × 79,632.56
  4. Step 4: Simplify right side
    170,940.21x = 20,402,298,570.05
  5. Step 5: Solve for x
    x = 20,402,298,570.05/170,940.21
  6. Step 6: Final answer
    x = 119,353.42

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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.