Home / 119,965.43-165,554.88-66,253.88

Finding the Fourth Proportional to 119,965.43, 165,554.88 and 66,253.88

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Solution

The fourth proportional to 119,965.43, 165,554.88 and 66,253.88 is: 91,431.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,965.43 : 165,554.88 = 66,253.88 : x
  2. Step 2: Convert to fraction form
    119,965.43/165,554.88 = 66,253.88/x
  3. Step 3: Cross multiply
    119,965.43x = 165,554.88 × 66,253.88
  4. Step 4: Simplify right side
    119,965.43x = 10,968,653,152.93
  5. Step 5: Solve for x
    x = 10,968,653,152.93/119,965.43
  6. Step 6: Final answer
    x = 91,431.78

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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.