Home / 128,301.12-192,396.63-44,069.76

Finding the Fourth Proportional to 128,301.12, 192,396.63 and 44,069.76

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Solution

The fourth proportional to 128,301.12, 192,396.63 and 44,069.76 is: 66,085.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,301.12 : 192,396.63 = 44,069.76 : x
  2. Step 2: Convert to fraction form
    128,301.12/192,396.63 = 44,069.76/x
  3. Step 3: Cross multiply
    128,301.12x = 192,396.63 × 44,069.76
  4. Step 4: Simplify right side
    128,301.12x = 8,478,873,308.91
  5. Step 5: Solve for x
    x = 8,478,873,308.91/128,301.12
  6. Step 6: Final answer
    x = 66,085.73

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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.