Home / 146,859.40-219,851.70-87,664.60

Finding the Fourth Proportional to 146,859.40, 219,851.70 and 87,664.60

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Solution

The fourth proportional to 146,859.40, 219,851.70 and 87,664.60 is: 131,235.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,859.40 : 219,851.70 = 87,664.60 : x
  2. Step 2: Convert to fraction form
    146,859.40/219,851.70 = 87,664.60/x
  3. Step 3: Cross multiply
    146,859.40x = 219,851.70 × 87,664.60
  4. Step 4: Simplify right side
    146,859.40x = 19,273,211,339.82
  5. Step 5: Solve for x
    x = 19,273,211,339.82/146,859.40
  6. Step 6: Final answer
    x = 131,235.80

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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.