Home / 121,540.38-182,185.47-46,640.58

Finding the Fourth Proportional to 121,540.38, 182,185.47 and 46,640.58

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Solution

The fourth proportional to 121,540.38, 182,185.47 and 46,640.58 is: 69,912.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,540.38 : 182,185.47 = 46,640.58 : x
  2. Step 2: Convert to fraction form
    121,540.38/182,185.47 = 46,640.58/x
  3. Step 3: Cross multiply
    121,540.38x = 182,185.47 × 46,640.58
  4. Step 4: Simplify right side
    121,540.38x = 8,497,235,988.37
  5. Step 5: Solve for x
    x = 8,497,235,988.37/121,540.38
  6. Step 6: Final answer
    x = 69,912.86

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1.5x scale

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.