Home / 114,986.99-158,546.29-78,705.89

Finding the Fourth Proportional to 114,986.99, 158,546.29 and 78,705.89

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Solution

The fourth proportional to 114,986.99, 158,546.29 and 78,705.89 is: 108,521.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,986.99 : 158,546.29 = 78,705.89 : x
  2. Step 2: Convert to fraction form
    114,986.99/158,546.29 = 78,705.89/x
  3. Step 3: Cross multiply
    114,986.99x = 158,546.29 × 78,705.89
  4. Step 4: Simplify right side
    114,986.99x = 12,478,526,860.65
  5. Step 5: Solve for x
    x = 12,478,526,860.65/114,986.99
  6. Step 6: Final answer
    x = 108,521.21

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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.