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Finding the Fourth Proportional to 120,009.98, 165,633.99 and 69,738.14

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Solution

The fourth proportional to 120,009.98, 165,633.99 and 69,738.14 is: 96,250.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,009.98 : 165,633.99 = 69,738.14 : x
  2. Step 2: Convert to fraction form
    120,009.98/165,633.99 = 69,738.14/x
  3. Step 3: Cross multiply
    120,009.98x = 165,633.99 × 69,738.14
  4. Step 4: Simplify right side
    120,009.98x = 11,551,006,383.38
  5. Step 5: Solve for x
    x = 11,551,006,383.38/120,009.98
  6. Step 6: Final answer
    x = 96,250.38

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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.