Home / 156,850.28-216,454.75-85,230.30

Finding the Fourth Proportional to 156,850.28, 216,454.75 and 85,230.30

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Solution

The fourth proportional to 156,850.28, 216,454.75 and 85,230.30 is: 117,618.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,850.28 : 216,454.75 = 85,230.30 : x
  2. Step 2: Convert to fraction form
    156,850.28/216,454.75 = 85,230.30/x
  3. Step 3: Cross multiply
    156,850.28x = 216,454.75 × 85,230.30
  4. Step 4: Simplify right side
    156,850.28x = 18,448,503,065.85
  5. Step 5: Solve for x
    x = 18,448,503,065.85/156,850.28
  6. Step 6: Final answer
    x = 117,618.56

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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.