Home / 120,908.32-166,805.70-69,911.68

Finding the Fourth Proportional to 120,908.32, 166,805.70 and 69,911.68

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Solution

The fourth proportional to 120,908.32, 166,805.70 and 69,911.68 is: 96,450.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,908.32 : 166,805.70 = 69,911.68 : x
  2. Step 2: Convert to fraction form
    120,908.32/166,805.70 = 69,911.68/x
  3. Step 3: Cross multiply
    120,908.32x = 166,805.70 × 69,911.68
  4. Step 4: Simplify right side
    120,908.32x = 11,661,666,720.58
  5. Step 5: Solve for x
    x = 11,661,666,720.58/120,908.32
  6. Step 6: Final answer
    x = 96,450.49

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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.