Home / 146,408.40-219,175.20-87,213.60

Finding the Fourth Proportional to 146,408.40, 219,175.20 and 87,213.60

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Solution

The fourth proportional to 146,408.40, 219,175.20 and 87,213.60 is: 130,559.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,408.40 : 219,175.20 = 87,213.60 : x
  2. Step 2: Convert to fraction form
    146,408.40/219,175.20 = 87,213.60/x
  3. Step 3: Cross multiply
    146,408.40x = 219,175.20 × 87,213.60
  4. Step 4: Simplify right side
    146,408.40x = 19,115,058,222.72
  5. Step 5: Solve for x
    x = 19,115,058,222.72/146,408.40
  6. Step 6: Final answer
    x = 130,559.85

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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.