Home / 112,170.24-154,479.96-109,720.80

Finding the Fourth Proportional to 112,170.24, 154,479.96 and 109,720.80

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Solution

The fourth proportional to 112,170.24, 154,479.96 and 109,720.80 is: 151,106.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,170.24 : 154,479.96 = 109,720.80 : x
  2. Step 2: Convert to fraction form
    112,170.24/154,479.96 = 109,720.80/x
  3. Step 3: Cross multiply
    112,170.24x = 154,479.96 × 109,720.80
  4. Step 4: Simplify right side
    112,170.24x = 16,949,664,795.17
  5. Step 5: Solve for x
    x = 16,949,664,795.17/112,170.24
  6. Step 6: Final answer
    x = 151,106.61

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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.