Home / 183,891.20-275,836.80-90,579.20

Finding the Fourth Proportional to 183,891.20, 275,836.80 and 90,579.20

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Solution

The fourth proportional to 183,891.20, 275,836.80 and 90,579.20 is: 135,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,891.20 : 275,836.80 = 90,579.20 : x
  2. Step 2: Convert to fraction form
    183,891.20/275,836.80 = 90,579.20/x
  3. Step 3: Cross multiply
    183,891.20x = 275,836.80 × 90,579.20
  4. Step 4: Simplify right side
    183,891.20x = 24,985,076,674.56
  5. Step 5: Solve for x
    x = 24,985,076,674.56/183,891.20
  6. Step 6: Final answer
    x = 135,868.80

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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.