Home / 104,272.65-143,952.09-81,563.39

Finding the Fourth Proportional to 104,272.65, 143,952.09 and 81,563.39

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Solution

The fourth proportional to 104,272.65, 143,952.09 and 81,563.39 is: 112,601.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,272.65 : 143,952.09 = 81,563.39 : x
  2. Step 2: Convert to fraction form
    104,272.65/143,952.09 = 81,563.39/x
  3. Step 3: Cross multiply
    104,272.65x = 143,952.09 × 81,563.39
  4. Step 4: Simplify right side
    104,272.65x = 11,741,220,700.89
  5. Step 5: Solve for x
    x = 11,741,220,700.89/104,272.65
  6. Step 6: Final answer
    x = 112,601.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.