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Finding the Fourth Proportional to 172,940.96, 238,647.12 and 97,487.84

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Solution

The fourth proportional to 172,940.96, 238,647.12 and 97,487.84 is: 134,526.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,940.96 : 238,647.12 = 97,487.84 : x
  2. Step 2: Convert to fraction form
    172,940.96/238,647.12 = 97,487.84/x
  3. Step 3: Cross multiply
    172,940.96x = 238,647.12 × 97,487.84
  4. Step 4: Simplify right side
    172,940.96x = 23,265,192,251.02
  5. Step 5: Solve for x
    x = 23,265,192,251.02/172,940.96
  6. Step 6: Final answer
    x = 134,526.79

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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.