Home / 105,596.40-158,421.43-30,716.54

Finding the Fourth Proportional to 105,596.40, 158,421.43 and 30,716.54

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Solution

The fourth proportional to 105,596.40, 158,421.43 and 30,716.54 is: 46,082.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,596.40 : 158,421.43 = 30,716.54 : x
  2. Step 2: Convert to fraction form
    105,596.40/158,421.43 = 30,716.54/x
  3. Step 3: Cross multiply
    105,596.40x = 158,421.43 × 30,716.54
  4. Step 4: Simplify right side
    105,596.40x = 4,866,158,191.45
  5. Step 5: Solve for x
    x = 4,866,158,191.45/105,596.40
  6. Step 6: Final answer
    x = 46,082.61

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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.