Home / 117,103.12-161,602.39-63,387.97

Finding the Fourth Proportional to 117,103.12, 161,602.39 and 63,387.97

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Solution

The fourth proportional to 117,103.12, 161,602.39 and 63,387.97 is: 87,475.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,103.12 : 161,602.39 = 63,387.97 : x
  2. Step 2: Convert to fraction form
    117,103.12/161,602.39 = 63,387.97/x
  3. Step 3: Cross multiply
    117,103.12x = 161,602.39 × 63,387.97
  4. Step 4: Simplify right side
    117,103.12x = 10,243,647,449.25
  5. Step 5: Solve for x
    x = 10,243,647,449.25/117,103.12
  6. Step 6: Final answer
    x = 87,475.44

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1.5x scale

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.