Home / 112,999.12-169,763.34-106,615.71

Finding the Fourth Proportional to 112,999.12, 169,763.34 and 106,615.71

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Solution

The fourth proportional to 112,999.12, 169,763.34 and 106,615.71 is: 160,173.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,999.12 : 169,763.34 = 106,615.71 : x
  2. Step 2: Convert to fraction form
    112,999.12/169,763.34 = 106,615.71/x
  3. Step 3: Cross multiply
    112,999.12x = 169,763.34 × 106,615.71
  4. Step 4: Simplify right side
    112,999.12x = 18,099,439,425.88
  5. Step 5: Solve for x
    x = 18,099,439,425.88/112,999.12
  6. Step 6: Final answer
    x = 160,173.28

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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.