Home / 120,717.52-166,582.30-66,999.94

Finding the Fourth Proportional to 120,717.52, 166,582.30 and 66,999.94

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Solution

The fourth proportional to 120,717.52, 166,582.30 and 66,999.94 is: 92,455.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,717.52 : 166,582.30 = 66,999.94 : x
  2. Step 2: Convert to fraction form
    120,717.52/166,582.30 = 66,999.94/x
  3. Step 3: Cross multiply
    120,717.52x = 166,582.30 × 66,999.94
  4. Step 4: Simplify right side
    120,717.52x = 11,161,004,105.06
  5. Step 5: Solve for x
    x = 11,161,004,105.06/120,717.52
  6. Step 6: Final answer
    x = 92,455.55

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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.