Home / 117,899.59-162,723.85-66,917.09

Finding the Fourth Proportional to 117,899.59, 162,723.85 and 66,917.09

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Solution

The fourth proportional to 117,899.59, 162,723.85 and 66,917.09 is: 92,358.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,899.59 : 162,723.85 = 66,917.09 : x
  2. Step 2: Convert to fraction form
    117,899.59/162,723.85 = 66,917.09/x
  3. Step 3: Cross multiply
    117,899.59x = 162,723.85 × 66,917.09
  4. Step 4: Simplify right side
    117,899.59x = 10,889,007,131.52
  5. Step 5: Solve for x
    x = 10,889,007,131.52/117,899.59
  6. Step 6: Final answer
    x = 92,358.31

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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.