Home / 104,689.06-156,973.92-71,449.36

Finding the Fourth Proportional to 104,689.06, 156,973.92 and 71,449.36

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Solution

The fourth proportional to 104,689.06, 156,973.92 and 71,449.36 is: 107,133.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,689.06 : 156,973.92 = 71,449.36 : x
  2. Step 2: Convert to fraction form
    104,689.06/156,973.92 = 71,449.36/x
  3. Step 3: Cross multiply
    104,689.06x = 156,973.92 × 71,449.36
  4. Step 4: Simplify right side
    104,689.06x = 11,215,686,120.69
  5. Step 5: Solve for x
    x = 11,215,686,120.69/104,689.06
  6. Step 6: Final answer
    x = 107,133.32

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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.