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Finding the Fourth Proportional to 105,059.50, 144,982.11 and 67,333.75

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Solution

The fourth proportional to 105,059.50, 144,982.11 and 67,333.75 is: 92,920.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,059.50 : 144,982.11 = 67,333.75 : x
  2. Step 2: Convert to fraction form
    105,059.50/144,982.11 = 67,333.75/x
  3. Step 3: Cross multiply
    105,059.50x = 144,982.11 × 67,333.75
  4. Step 4: Simplify right side
    105,059.50x = 9,762,189,149.21
  5. Step 5: Solve for x
    x = 9,762,189,149.21/105,059.50
  6. Step 6: Final answer
    x = 92,920.58

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1.5x scale

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.