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Finding the Fourth Proportional to 145,992.96, 201,469.86 and 82,330.29

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Solution

The fourth proportional to 145,992.96, 201,469.86 and 82,330.29 is: 113,615.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,992.96 : 201,469.86 = 82,330.29 : x
  2. Step 2: Convert to fraction form
    145,992.96/201,469.86 = 82,330.29/x
  3. Step 3: Cross multiply
    145,992.96x = 201,469.86 × 82,330.29
  4. Step 4: Simplify right side
    145,992.96x = 16,587,072,000.06
  5. Step 5: Solve for x
    x = 16,587,072,000.06/145,992.96
  6. Step 6: Final answer
    x = 113,615.56

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1.5x scale

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.