Home / 110,451.28-165,725.68-85,706.32

Finding the Fourth Proportional to 110,451.28, 165,725.68 and 85,706.32

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Solution

The fourth proportional to 110,451.28, 165,725.68 and 85,706.32 is: 128,597.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,451.28 : 165,725.68 = 85,706.32 : x
  2. Step 2: Convert to fraction form
    110,451.28/165,725.68 = 85,706.32/x
  3. Step 3: Cross multiply
    110,451.28x = 165,725.68 × 85,706.32
  4. Step 4: Simplify right side
    110,451.28x = 14,203,738,162.30
  5. Step 5: Solve for x
    x = 14,203,738,162.30/110,451.28
  6. Step 6: Final answer
    x = 128,597.32

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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.