Home / 133,190.10-199,785.15-83,423.70

Finding the Fourth Proportional to 133,190.10, 199,785.15 and 83,423.70

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Solution

The fourth proportional to 133,190.10, 199,785.15 and 83,423.70 is: 125,135.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,190.10 : 199,785.15 = 83,423.70 : x
  2. Step 2: Convert to fraction form
    133,190.10/199,785.15 = 83,423.70/x
  3. Step 3: Cross multiply
    133,190.10x = 199,785.15 × 83,423.70
  4. Step 4: Simplify right side
    133,190.10x = 16,666,816,418.06
  5. Step 5: Solve for x
    x = 16,666,816,418.06/133,190.10
  6. Step 6: Final answer
    x = 125,135.55

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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.