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Finding the Fourth Proportional to 132,914.79, 199,404.99 and 39,420.54

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Solution

The fourth proportional to 132,914.79, 199,404.99 and 39,420.54 is: 59,140.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,914.79 : 199,404.99 = 39,420.54 : x
  2. Step 2: Convert to fraction form
    132,914.79/199,404.99 = 39,420.54/x
  3. Step 3: Cross multiply
    132,914.79x = 199,404.99 × 39,420.54
  4. Step 4: Simplify right side
    132,914.79x = 7,860,652,384.49
  5. Step 5: Solve for x
    x = 7,860,652,384.49/132,914.79
  6. Step 6: Final answer
    x = 59,140.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.