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Finding the Fourth Proportional to 117,290.73, 161,857.26 and 69,515.71

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Solution

The fourth proportional to 117,290.73, 161,857.26 and 69,515.71 is: 95,929.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,290.73 : 161,857.26 = 69,515.71 : x
  2. Step 2: Convert to fraction form
    117,290.73/161,857.26 = 69,515.71/x
  3. Step 3: Cross multiply
    117,290.73x = 161,857.26 × 69,515.71
  4. Step 4: Simplify right side
    117,290.73x = 11,251,622,347.55
  5. Step 5: Solve for x
    x = 11,251,622,347.55/117,290.73
  6. Step 6: Final answer
    x = 95,929.34

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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.