Home / 149,785.04-206,704.76-85,251.11

Finding the Fourth Proportional to 149,785.04, 206,704.76 and 85,251.11

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Solution

The fourth proportional to 149,785.04, 206,704.76 and 85,251.11 is: 117,647.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,785.04 : 206,704.76 = 85,251.11 : x
  2. Step 2: Convert to fraction form
    149,785.04/206,704.76 = 85,251.11/x
  3. Step 3: Cross multiply
    149,785.04x = 206,704.76 × 85,251.11
  4. Step 4: Simplify right side
    149,785.04x = 17,621,808,772.50
  5. Step 5: Solve for x
    x = 17,621,808,772.50/149,785.04
  6. Step 6: Final answer
    x = 117,647.32

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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.