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Finding the Fourth Proportional to 117,264.38, 161,958.49 and 79,473.02

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Solution

The fourth proportional to 117,264.38, 161,958.49 and 79,473.02 is: 109,763.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,264.38 : 161,958.49 = 79,473.02 : x
  2. Step 2: Convert to fraction form
    117,264.38/161,958.49 = 79,473.02/x
  3. Step 3: Cross multiply
    117,264.38x = 161,958.49 × 79,473.02
  4. Step 4: Simplify right side
    117,264.38x = 12,871,329,306.46
  5. Step 5: Solve for x
    x = 12,871,329,306.46/117,264.38
  6. Step 6: Final answer
    x = 109,763.34

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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.