Home / 134,913.78-186,183.60-74,484.26

Finding the Fourth Proportional to 134,913.78, 186,183.60 and 74,484.26

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Solution

The fourth proportional to 134,913.78, 186,183.60 and 74,484.26 is: 102,789.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,913.78 : 186,183.60 = 74,484.26 : x
  2. Step 2: Convert to fraction form
    134,913.78/186,183.60 = 74,484.26/x
  3. Step 3: Cross multiply
    134,913.78x = 186,183.60 × 74,484.26
  4. Step 4: Simplify right side
    134,913.78x = 13,867,747,670.14
  5. Step 5: Solve for x
    x = 13,867,747,670.14/134,913.78
  6. Step 6: Final answer
    x = 102,789.71

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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.