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Finding the Fourth Proportional to 162,107.80, 243,104.10 and 73,403.80

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Solution

The fourth proportional to 162,107.80, 243,104.10 and 73,403.80 is: 110,079.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,107.80 : 243,104.10 = 73,403.80 : x
  2. Step 2: Convert to fraction form
    162,107.80/243,104.10 = 73,403.80/x
  3. Step 3: Cross multiply
    162,107.80x = 243,104.10 × 73,403.80
  4. Step 4: Simplify right side
    162,107.80x = 17,844,764,735.58
  5. Step 5: Solve for x
    x = 17,844,764,735.58/162,107.80
  6. Step 6: Final answer
    x = 110,079.62

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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.