Home / 146,729.16-219,896.64-80,069.40

Finding the Fourth Proportional to 146,729.16, 219,896.64 and 80,069.40

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Solution

The fourth proportional to 146,729.16, 219,896.64 and 80,069.40 is: 119,996.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,729.16 : 219,896.64 = 80,069.40 : x
  2. Step 2: Convert to fraction form
    146,729.16/219,896.64 = 80,069.40/x
  3. Step 3: Cross multiply
    146,729.16x = 219,896.64 × 80,069.40
  4. Step 4: Simplify right side
    146,729.16x = 17,606,992,026.82
  5. Step 5: Solve for x
    x = 17,606,992,026.82/146,729.16
  6. Step 6: Final answer
    x = 119,996.54

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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.