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Finding the Fourth Proportional to 108,651.90, 162,783.45 and 67,050.30

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Solution

The fourth proportional to 108,651.90, 162,783.45 and 67,050.30 is: 100,455.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,651.90 : 162,783.45 = 67,050.30 : x
  2. Step 2: Convert to fraction form
    108,651.90/162,783.45 = 67,050.30/x
  3. Step 3: Cross multiply
    108,651.90x = 162,783.45 × 67,050.30
  4. Step 4: Simplify right side
    108,651.90x = 10,914,679,157.54
  5. Step 5: Solve for x
    x = 10,914,679,157.54/108,651.90
  6. Step 6: Final answer
    x = 100,455.48

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1.5x scale

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.