Home / 83,186.78-114,840.08-51,374.13

Finding the Fourth Proportional to 83,186.78, 114,840.08 and 51,374.13

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Solution

The fourth proportional to 83,186.78, 114,840.08 and 51,374.13 is: 70,922.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,186.78 : 114,840.08 = 51,374.13 : x
  2. Step 2: Convert to fraction form
    83,186.78/114,840.08 = 51,374.13/x
  3. Step 3: Cross multiply
    83,186.78x = 114,840.08 × 51,374.13
  4. Step 4: Simplify right side
    83,186.78x = 5,899,808,942.26
  5. Step 5: Solve for x
    x = 5,899,808,942.26/83,186.78
  6. Step 6: Final answer
    x = 70,922.44

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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.