Home / 128,846.76-193,288.56-40,109.23

Finding the Fourth Proportional to 128,846.76, 193,288.56 and 40,109.23

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Solution

The fourth proportional to 128,846.76, 193,288.56 and 40,109.23 is: 60,169.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,846.76 : 193,288.56 = 40,109.23 : x
  2. Step 2: Convert to fraction form
    128,846.76/193,288.56 = 40,109.23/x
  3. Step 3: Cross multiply
    128,846.76x = 193,288.56 × 40,109.23
  4. Step 4: Simplify right side
    128,846.76x = 7,752,655,309.41
  5. Step 5: Solve for x
    x = 7,752,655,309.41/128,846.76
  6. Step 6: Final answer
    x = 60,169.58

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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.