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Finding the Fourth Proportional to 120,224.88, 165,922.72 and 69,239.28

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Solution

The fourth proportional to 120,224.88, 165,922.72 and 69,239.28 is: 95,557.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,224.88 : 165,922.72 = 69,239.28 : x
  2. Step 2: Convert to fraction form
    120,224.88/165,922.72 = 69,239.28/x
  3. Step 3: Cross multiply
    120,224.88x = 165,922.72 × 69,239.28
  4. Step 4: Simplify right side
    120,224.88x = 11,488,369,668.44
  5. Step 5: Solve for x
    x = 11,488,369,668.44/120,224.88
  6. Step 6: Final answer
    x = 95,557.34

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1.5x scale

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.