Home / 168,111.81-231,675.26-120,281.85

Finding the Fourth Proportional to 168,111.81, 231,675.26 and 120,281.85

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Solution

The fourth proportional to 168,111.81, 231,675.26 and 120,281.85 is: 165,760.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,111.81 : 231,675.26 = 120,281.85 : x
  2. Step 2: Convert to fraction form
    168,111.81/231,675.26 = 120,281.85/x
  3. Step 3: Cross multiply
    168,111.81x = 231,675.26 × 120,281.85
  4. Step 4: Simplify right side
    168,111.81x = 27,866,328,270.62
  5. Step 5: Solve for x
    x = 27,866,328,270.62/168,111.81
  6. Step 6: Final answer
    x = 165,760.68

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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.