Home / 122,310.27-168,631.92-79,213.62

Finding the Fourth Proportional to 122,310.27, 168,631.92 and 79,213.62

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Solution

The fourth proportional to 122,310.27, 168,631.92 and 79,213.62 is: 109,213.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,310.27 : 168,631.92 = 79,213.62 : x
  2. Step 2: Convert to fraction form
    122,310.27/168,631.92 = 79,213.62/x
  3. Step 3: Cross multiply
    122,310.27x = 168,631.92 × 79,213.62
  4. Step 4: Simplify right side
    122,310.27x = 13,357,944,830.75
  5. Step 5: Solve for x
    x = 13,357,944,830.75/122,310.27
  6. Step 6: Final answer
    x = 109,213.60

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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.