Home / 112,157.28-154,771.58-66,834.25

Finding the Fourth Proportional to 112,157.28, 154,771.58 and 66,834.25

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Solution

The fourth proportional to 112,157.28, 154,771.58 and 66,834.25 is: 92,228.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,157.28 : 154,771.58 = 66,834.25 : x
  2. Step 2: Convert to fraction form
    112,157.28/154,771.58 = 66,834.25/x
  3. Step 3: Cross multiply
    112,157.28x = 154,771.58 × 66,834.25
  4. Step 4: Simplify right side
    112,157.28x = 10,344,043,121.36
  5. Step 5: Solve for x
    x = 10,344,043,121.36/112,157.28
  6. Step 6: Final answer
    x = 92,228.01

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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.