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Finding the Fourth Proportional to 117,523.80, 161,958.15 and 115,364.34

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Solution

The fourth proportional to 117,523.80, 161,958.15 and 115,364.34 is: 158,982.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,523.80 : 161,958.15 = 115,364.34 : x
  2. Step 2: Convert to fraction form
    117,523.80/161,958.15 = 115,364.34/x
  3. Step 3: Cross multiply
    117,523.80x = 161,958.15 × 115,364.34
  4. Step 4: Simplify right side
    117,523.80x = 18,684,195,082.37
  5. Step 5: Solve for x
    x = 18,684,195,082.37/117,523.80
  6. Step 6: Final answer
    x = 158,982.22

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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.