Home / 120,177.43-165,843.41-66,461.28

Finding the Fourth Proportional to 120,177.43, 165,843.41 and 66,461.28

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Solution

The fourth proportional to 120,177.43, 165,843.41 and 66,461.28 is: 91,715.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,177.43 : 165,843.41 = 66,461.28 : x
  2. Step 2: Convert to fraction form
    120,177.43/165,843.41 = 66,461.28/x
  3. Step 3: Cross multiply
    120,177.43x = 165,843.41 × 66,461.28
  4. Step 4: Simplify right side
    120,177.43x = 11,022,165,308.16
  5. Step 5: Solve for x
    x = 11,022,165,308.16/120,177.43
  6. Step 6: Final answer
    x = 91,715.77

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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.