Home / 118,296-163,249.08-64,582.16

Finding the Fourth Proportional to 118,296, 163,249.08 and 64,582.16

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Solution

The fourth proportional to 118,296, 163,249.08 and 64,582.16 is: 89,123.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,296 : 163,249.08 = 64,582.16 : x
  2. Step 2: Convert to fraction form
    118,296/163,249.08 = 64,582.16/x
  3. Step 3: Cross multiply
    118,296x = 163,249.08 × 64,582.16
  4. Step 4: Simplify right side
    118,296x = 10,542,978,204.41
  5. Step 5: Solve for x
    x = 10,542,978,204.41/118,296
  6. Step 6: Final answer
    x = 89,123.71

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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.