Home / 119,900.80-165,464.64-66,185.92

Finding the Fourth Proportional to 119,900.80, 165,464.64 and 66,185.92

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Solution

The fourth proportional to 119,900.80, 165,464.64 and 66,185.92 is: 91,337.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,900.80 : 165,464.64 = 66,185.92 : x
  2. Step 2: Convert to fraction form
    119,900.80/165,464.64 = 66,185.92/x
  3. Step 3: Cross multiply
    119,900.80x = 165,464.64 × 66,185.92
  4. Step 4: Simplify right side
    119,900.80x = 10,951,429,425.87
  5. Step 5: Solve for x
    x = 10,951,429,425.87/119,900.80
  6. Step 6: Final answer
    x = 91,337.42

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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.