Home / 218,176.20-300,952.60-133,145.64

Finding the Fourth Proportional to 218,176.20, 300,952.60 and 133,145.64

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Solution

The fourth proportional to 218,176.20, 300,952.60 and 133,145.64 is: 183,661.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,176.20 : 300,952.60 = 133,145.64 : x
  2. Step 2: Convert to fraction form
    218,176.20/300,952.60 = 133,145.64/x
  3. Step 3: Cross multiply
    218,176.20x = 300,952.60 × 133,145.64
  4. Step 4: Simplify right side
    218,176.20x = 40,070,526,536.66
  5. Step 5: Solve for x
    x = 40,070,526,536.66/218,176.20
  6. Step 6: Final answer
    x = 183,661.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.