Home / 121,942.53-183,827.78-113,814.18

Finding the Fourth Proportional to 121,942.53, 183,827.78 and 113,814.18

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Solution

The fourth proportional to 121,942.53, 183,827.78 and 113,814.18 is: 171,574.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,942.53 : 183,827.78 = 113,814.18 : x
  2. Step 2: Convert to fraction form
    121,942.53/183,827.78 = 113,814.18/x
  3. Step 3: Cross multiply
    121,942.53x = 183,827.78 × 113,814.18
  4. Step 4: Simplify right side
    121,942.53x = 20,922,207,472.85
  5. Step 5: Solve for x
    x = 20,922,207,472.85/121,942.53
  6. Step 6: Final answer
    x = 171,574.33

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.