Home / 146,498.40-219,747.60-80,143.20

Finding the Fourth Proportional to 146,498.40, 219,747.60 and 80,143.20

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Solution

The fourth proportional to 146,498.40, 219,747.60 and 80,143.20 is: 120,214.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,498.40 : 219,747.60 = 80,143.20 : x
  2. Step 2: Convert to fraction form
    146,498.40/219,747.60 = 80,143.20/x
  3. Step 3: Cross multiply
    146,498.40x = 219,747.60 × 80,143.20
  4. Step 4: Simplify right side
    146,498.40x = 17,611,275,856.32
  5. Step 5: Solve for x
    x = 17,611,275,856.32/146,498.40
  6. Step 6: Final answer
    x = 120,214.80

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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.