Home / 119,814.64-165,343.11-66,100.09

Finding the Fourth Proportional to 119,814.64, 165,343.11 and 66,100.09

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Solution

The fourth proportional to 119,814.64, 165,343.11 and 66,100.09 is: 91,217.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,814.64 : 165,343.11 = 66,100.09 : x
  2. Step 2: Convert to fraction form
    119,814.64/165,343.11 = 66,100.09/x
  3. Step 3: Cross multiply
    119,814.64x = 165,343.11 × 66,100.09
  4. Step 4: Simplify right side
    119,814.64x = 10,929,194,451.88
  5. Step 5: Solve for x
    x = 10,929,194,451.88/119,814.64
  6. Step 6: Final answer
    x = 91,217.52

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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.