Home / 122,842.20-169,614.61-120,880.42

Finding the Fourth Proportional to 122,842.20, 169,614.61 and 120,880.42

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Solution

The fourth proportional to 122,842.20, 169,614.61 and 120,880.42 is: 166,905.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,842.20 : 169,614.61 = 120,880.42 : x
  2. Step 2: Convert to fraction form
    122,842.20/169,614.61 = 120,880.42/x
  3. Step 3: Cross multiply
    122,842.20x = 169,614.61 × 120,880.42
  4. Step 4: Simplify right side
    122,842.20x = 20,503,085,294.94
  5. Step 5: Solve for x
    x = 20,503,085,294.94/122,842.20
  6. Step 6: Final answer
    x = 166,905.88

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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.