Home / 120,695.52-166,262.40-102,732.96

Finding the Fourth Proportional to 120,695.52, 166,262.40 and 102,732.96

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Solution

The fourth proportional to 120,695.52, 166,262.40 and 102,732.96 is: 141,518.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,695.52 : 166,262.40 = 102,732.96 : x
  2. Step 2: Convert to fraction form
    120,695.52/166,262.40 = 102,732.96/x
  3. Step 3: Cross multiply
    120,695.52x = 166,262.40 × 102,732.96
  4. Step 4: Simplify right side
    120,695.52x = 17,080,628,488.70
  5. Step 5: Solve for x
    x = 17,080,628,488.70/120,695.52
  6. Step 6: Final answer
    x = 141,518.33

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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.