Home / 154,457.56-231,720.30-87,928.84

Finding the Fourth Proportional to 154,457.56, 231,720.30 and 87,928.84

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Solution

The fourth proportional to 154,457.56, 231,720.30 and 87,928.84 is: 131,912.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,457.56 : 231,720.30 = 87,928.84 : x
  2. Step 2: Convert to fraction form
    154,457.56/231,720.30 = 87,928.84/x
  3. Step 3: Cross multiply
    154,457.56x = 231,720.30 × 87,928.84
  4. Step 4: Simplify right side
    154,457.56x = 20,374,897,183.45
  5. Step 5: Solve for x
    x = 20,374,897,183.45/154,457.56
  6. Step 6: Final answer
    x = 131,912.59

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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.