Home / 128,536.36-192,814.26-39,799.24

Finding the Fourth Proportional to 128,536.36, 192,814.26 and 39,799.24

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Solution

The fourth proportional to 128,536.36, 192,814.26 and 39,799.24 is: 59,701.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,536.36 : 192,814.26 = 39,799.24 : x
  2. Step 2: Convert to fraction form
    128,536.36/192,814.26 = 39,799.24/x
  3. Step 3: Cross multiply
    128,536.36x = 192,814.26 × 39,799.24
  4. Step 4: Simplify right side
    128,536.36x = 7,673,861,009.16
  5. Step 5: Solve for x
    x = 7,673,861,009.16/128,536.36
  6. Step 6: Final answer
    x = 59,701.87

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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.