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Finding the Fourth Proportional to 163,498, 245,113.44 and 84,634.96

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Solution

The fourth proportional to 163,498, 245,113.44 and 84,634.96 is: 126,883.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,498 : 245,113.44 = 84,634.96 : x
  2. Step 2: Convert to fraction form
    163,498/245,113.44 = 84,634.96/x
  3. Step 3: Cross multiply
    163,498x = 245,113.44 × 84,634.96
  4. Step 4: Simplify right side
    163,498x = 20,745,166,189.86
  5. Step 5: Solve for x
    x = 20,745,166,189.86/163,498
  6. Step 6: Final answer
    x = 126,883.30

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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.