Home / 129,177.05-193,661.01-40,384.85

Finding the Fourth Proportional to 129,177.05, 193,661.01 and 40,384.85

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Solution

The fourth proportional to 129,177.05, 193,661.01 and 40,384.85 is: 60,544.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,177.05 : 193,661.01 = 40,384.85 : x
  2. Step 2: Convert to fraction form
    129,177.05/193,661.01 = 40,384.85/x
  3. Step 3: Cross multiply
    129,177.05x = 193,661.01 × 40,384.85
  4. Step 4: Simplify right side
    129,177.05x = 7,820,969,871.39
  5. Step 5: Solve for x
    x = 7,820,969,871.39/129,177.05
  6. Step 6: Final answer
    x = 60,544.58

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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.