Home / 112,310.20-168,416.70-45,728.20

Finding the Fourth Proportional to 112,310.20, 168,416.70 and 45,728.20

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Solution

The fourth proportional to 112,310.20, 168,416.70 and 45,728.20 is: 68,572.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,310.20 : 168,416.70 = 45,728.20 : x
  2. Step 2: Convert to fraction form
    112,310.20/168,416.70 = 45,728.20/x
  3. Step 3: Cross multiply
    112,310.20x = 168,416.70 × 45,728.20
  4. Step 4: Simplify right side
    112,310.20x = 7,701,392,540.94
  5. Step 5: Solve for x
    x = 7,701,392,540.94/112,310.20
  6. Step 6: Final answer
    x = 68,572.51

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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.