Home / 128,060.39-192,119.13-39,322.86

Finding the Fourth Proportional to 128,060.39, 192,119.13 and 39,322.86

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Solution

The fourth proportional to 128,060.39, 192,119.13 and 39,322.86 is: 58,993.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,060.39 : 192,119.13 = 39,322.86 : x
  2. Step 2: Convert to fraction form
    128,060.39/192,119.13 = 39,322.86/x
  3. Step 3: Cross multiply
    128,060.39x = 192,119.13 × 39,322.86
  4. Step 4: Simplify right side
    128,060.39x = 7,554,673,652.31
  5. Step 5: Solve for x
    x = 7,554,673,652.31/128,060.39
  6. Step 6: Final answer
    x = 58,993.06

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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.