Home / 117,026.25-161,502.03-71,706.75

Finding the Fourth Proportional to 117,026.25, 161,502.03 and 71,706.75

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Solution

The fourth proportional to 117,026.25, 161,502.03 and 71,706.75 is: 98,958.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,026.25 : 161,502.03 = 71,706.75 : x
  2. Step 2: Convert to fraction form
    117,026.25/161,502.03 = 71,706.75/x
  3. Step 3: Cross multiply
    117,026.25x = 161,502.03 × 71,706.75
  4. Step 4: Simplify right side
    117,026.25x = 11,580,785,689.70
  5. Step 5: Solve for x
    x = 11,580,785,689.70/117,026.25
  6. Step 6: Final answer
    x = 98,958.87

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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.