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Finding the Fourth Proportional to 172,524.53, 238,177.31 and 120,999.88

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Solution

The fourth proportional to 172,524.53, 238,177.31 and 120,999.88 is: 167,045.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,524.53 : 238,177.31 = 120,999.88 : x
  2. Step 2: Convert to fraction form
    172,524.53/238,177.31 = 120,999.88/x
  3. Step 3: Cross multiply
    172,524.53x = 238,177.31 × 120,999.88
  4. Step 4: Simplify right side
    172,524.53x = 28,819,424,962.32
  5. Step 5: Solve for x
    x = 28,819,424,962.32/172,524.53
  6. Step 6: Final answer
    x = 167,045.37

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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.