Home / 119,920.41-165,485.83-66,204.28

Finding the Fourth Proportional to 119,920.41, 165,485.83 and 66,204.28

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Solution

The fourth proportional to 119,920.41, 165,485.83 and 66,204.28 is: 91,359.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,920.41 : 165,485.83 = 66,204.28 : x
  2. Step 2: Convert to fraction form
    119,920.41/165,485.83 = 66,204.28/x
  3. Step 3: Cross multiply
    119,920.41x = 165,485.83 × 66,204.28
  4. Step 4: Simplify right side
    119,920.41x = 10,955,869,480.62
  5. Step 5: Solve for x
    x = 10,955,869,480.62/119,920.41
  6. Step 6: Final answer
    x = 91,359.51

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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.