Home / 119,913.52-165,479.73-66,198.61

Finding the Fourth Proportional to 119,913.52, 165,479.73 and 66,198.61

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Solution

The fourth proportional to 119,913.52, 165,479.73 and 66,198.61 is: 91,353.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,913.52 : 165,479.73 = 66,198.61 : x
  2. Step 2: Convert to fraction form
    119,913.52/165,479.73 = 66,198.61/x
  3. Step 3: Cross multiply
    119,913.52x = 165,479.73 × 66,198.61
  4. Step 4: Simplify right side
    119,913.52x = 10,954,528,109.18
  5. Step 5: Solve for x
    x = 10,954,528,109.18/119,913.52
  6. Step 6: Final answer
    x = 91,353.57

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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.