Home / 104,154.31-143,735.61-63,890.29

Finding the Fourth Proportional to 104,154.31, 143,735.61 and 63,890.29

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Solution

The fourth proportional to 104,154.31, 143,735.61 and 63,890.29 is: 88,170.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,154.31 : 143,735.61 = 63,890.29 : x
  2. Step 2: Convert to fraction form
    104,154.31/143,735.61 = 63,890.29/x
  3. Step 3: Cross multiply
    104,154.31x = 143,735.61 × 63,890.29
  4. Step 4: Simplify right side
    104,154.31x = 9,183,309,806.23
  5. Step 5: Solve for x
    x = 9,183,309,806.23/104,154.31
  6. Step 6: Final answer
    x = 88,170.23

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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.