Home / 118,144.78-163,052.44-72,231.37

Finding the Fourth Proportional to 118,144.78, 163,052.44 and 72,231.37

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Solution

The fourth proportional to 118,144.78, 163,052.44 and 72,231.37 is: 99,687.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,144.78 : 163,052.44 = 72,231.37 : x
  2. Step 2: Convert to fraction form
    118,144.78/163,052.44 = 72,231.37/x
  3. Step 3: Cross multiply
    118,144.78x = 163,052.44 × 72,231.37
  4. Step 4: Simplify right side
    118,144.78x = 11,777,500,590.27
  5. Step 5: Solve for x
    x = 11,777,500,590.27/118,144.78
  6. Step 6: Final answer
    x = 99,687.02

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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.