Home / 117,306.23-161,874.45-66,321.38

Finding the Fourth Proportional to 117,306.23, 161,874.45 and 66,321.38

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Solution

The fourth proportional to 117,306.23, 161,874.45 and 66,321.38 is: 91,518.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,306.23 : 161,874.45 = 66,321.38 : x
  2. Step 2: Convert to fraction form
    117,306.23/161,874.45 = 66,321.38/x
  3. Step 3: Cross multiply
    117,306.23x = 161,874.45 × 66,321.38
  4. Step 4: Simplify right side
    117,306.23x = 10,735,737,315.43
  5. Step 5: Solve for x
    x = 10,735,737,315.43/117,306.23
  6. Step 6: Final answer
    x = 91,518.91

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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.