Home / 119,781.24-165,298.89-66,067.71

Finding the Fourth Proportional to 119,781.24, 165,298.89 and 66,067.71

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Solution

The fourth proportional to 119,781.24, 165,298.89 and 66,067.71 is: 91,173.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,781.24 : 165,298.89 = 66,067.71 : x
  2. Step 2: Convert to fraction form
    119,781.24/165,298.89 = 66,067.71/x
  3. Step 3: Cross multiply
    119,781.24x = 165,298.89 × 66,067.71
  4. Step 4: Simplify right side
    119,781.24x = 10,920,919,127.84
  5. Step 5: Solve for x
    x = 10,920,919,127.84/119,781.24
  6. Step 6: Final answer
    x = 91,173.87

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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.