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Finding the Fourth Proportional to 146,682, 202,421.34 and 79,614

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Solution

The fourth proportional to 146,682, 202,421.34 and 79,614 is: 109,867.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,682 : 202,421.34 = 79,614 : x
  2. Step 2: Convert to fraction form
    146,682/202,421.34 = 79,614/x
  3. Step 3: Cross multiply
    146,682x = 202,421.34 × 79,614
  4. Step 4: Simplify right side
    146,682x = 16,115,572,562.76
  5. Step 5: Solve for x
    x = 16,115,572,562.76/146,682
  6. Step 6: Final answer
    x = 109,867.42

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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.