Home / 199,586.80-275,334.32-135,078.64

Finding the Fourth Proportional to 199,586.80, 275,334.32 and 135,078.64

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Solution

The fourth proportional to 199,586.80, 275,334.32 and 135,078.64 is: 186,343.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,586.80 : 275,334.32 = 135,078.64 : x
  2. Step 2: Convert to fraction form
    199,586.80/275,334.32 = 135,078.64/x
  3. Step 3: Cross multiply
    199,586.80x = 275,334.32 × 135,078.64
  4. Step 4: Simplify right side
    199,586.80x = 37,191,785,490.92
  5. Step 5: Solve for x
    x = 37,191,785,490.92/199,586.80
  6. Step 6: Final answer
    x = 186,343.91

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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.