Home / 131,537.28-181,521.20-71,107.94

Finding the Fourth Proportional to 131,537.28, 181,521.20 and 71,107.94

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Solution

The fourth proportional to 131,537.28, 181,521.20 and 71,107.94 is: 98,128.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,537.28 : 181,521.20 = 71,107.94 : x
  2. Step 2: Convert to fraction form
    131,537.28/181,521.20 = 71,107.94/x
  3. Step 3: Cross multiply
    131,537.28x = 181,521.20 × 71,107.94
  4. Step 4: Simplify right side
    131,537.28x = 12,907,599,229.90
  5. Step 5: Solve for x
    x = 12,907,599,229.90/131,537.28
  6. Step 6: Final answer
    x = 98,128.83

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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.