Home / 128,591.12-192,899.37-44,340.20

Finding the Fourth Proportional to 128,591.12, 192,899.37 and 44,340.20

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Solution

The fourth proportional to 128,591.12, 192,899.37 and 44,340.20 is: 66,514.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,591.12 : 192,899.37 = 44,340.20 : x
  2. Step 2: Convert to fraction form
    128,591.12/192,899.37 = 44,340.20/x
  3. Step 3: Cross multiply
    128,591.12x = 192,899.37 × 44,340.20
  4. Step 4: Simplify right side
    128,591.12x = 8,553,195,681.18
  5. Step 5: Solve for x
    x = 8,553,195,681.18/128,591.12
  6. Step 6: Final answer
    x = 66,514.67

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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.