Home / 146,428.40-219,205.20-87,233.60

Finding the Fourth Proportional to 146,428.40, 219,205.20 and 87,233.60

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Solution

The fourth proportional to 146,428.40, 219,205.20 and 87,233.60 is: 130,589.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,428.40 : 219,205.20 = 87,233.60 : x
  2. Step 2: Convert to fraction form
    146,428.40/219,205.20 = 87,233.60/x
  3. Step 3: Cross multiply
    146,428.40x = 219,205.20 × 87,233.60
  4. Step 4: Simplify right side
    146,428.40x = 19,122,058,734.72
  5. Step 5: Solve for x
    x = 19,122,058,734.72/146,428.40
  6. Step 6: Final answer
    x = 130,589.82

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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.