Home / 125,636.48-173,449.92-82,740.61

Finding the Fourth Proportional to 125,636.48, 173,449.92 and 82,740.61

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Solution

The fourth proportional to 125,636.48, 173,449.92 and 82,740.61 is: 114,229.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,636.48 : 173,449.92 = 82,740.61 : x
  2. Step 2: Convert to fraction form
    125,636.48/173,449.92 = 82,740.61/x
  3. Step 3: Cross multiply
    125,636.48x = 173,449.92 × 82,740.61
  4. Step 4: Simplify right side
    125,636.48x = 14,351,351,038.56
  5. Step 5: Solve for x
    x = 14,351,351,038.56/125,636.48
  6. Step 6: Final answer
    x = 114,229.18

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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.