Home / 121,086.48-181,679.76-53,583.12

Finding the Fourth Proportional to 121,086.48, 181,679.76 and 53,583.12

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Solution

The fourth proportional to 121,086.48, 181,679.76 and 53,583.12 is: 80,396.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,086.48 : 181,679.76 = 53,583.12 : x
  2. Step 2: Convert to fraction form
    121,086.48/181,679.76 = 53,583.12/x
  3. Step 3: Cross multiply
    121,086.48x = 181,679.76 × 53,583.12
  4. Step 4: Simplify right side
    121,086.48x = 9,734,968,381.65
  5. Step 5: Solve for x
    x = 9,734,968,381.65/121,086.48
  6. Step 6: Final answer
    x = 80,396.82

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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.