Home / 119,880.25-165,434.41-66,164.90

Finding the Fourth Proportional to 119,880.25, 165,434.41 and 66,164.90

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Solution

The fourth proportional to 119,880.25, 165,434.41 and 66,164.90 is: 91,307.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,880.25 : 165,434.41 = 66,164.90 : x
  2. Step 2: Convert to fraction form
    119,880.25/165,434.41 = 66,164.90/x
  3. Step 3: Cross multiply
    119,880.25x = 165,434.41 × 66,164.90
  4. Step 4: Simplify right side
    119,880.25x = 10,945,950,201.62
  5. Step 5: Solve for x
    x = 10,945,950,201.62/119,880.25
  6. Step 6: Final answer
    x = 91,307.37

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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.