Home / 117,185.40-161,725.80-66,207.48

Finding the Fourth Proportional to 117,185.40, 161,725.80 and 66,207.48

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Solution

The fourth proportional to 117,185.40, 161,725.80 and 66,207.48 is: 91,371.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,185.40 : 161,725.80 = 66,207.48 : x
  2. Step 2: Convert to fraction form
    117,185.40/161,725.80 = 66,207.48/x
  3. Step 3: Cross multiply
    117,185.40x = 161,725.80 × 66,207.48
  4. Step 4: Simplify right side
    117,185.40x = 10,707,457,668.98
  5. Step 5: Solve for x
    x = 10,707,457,668.98/117,185.40
  6. Step 6: Final answer
    x = 91,371.94

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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.