Home / 117,154.24-161,669.28-66,850.72

Finding the Fourth Proportional to 117,154.24, 161,669.28 and 66,850.72

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Solution

The fourth proportional to 117,154.24, 161,669.28 and 66,850.72 is: 92,251.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,154.24 : 161,669.28 = 66,850.72 : x
  2. Step 2: Convert to fraction form
    117,154.24/161,669.28 = 66,850.72/x
  3. Step 3: Cross multiply
    117,154.24x = 161,669.28 × 66,850.72
  4. Step 4: Simplify right side
    117,154.24x = 10,807,707,769.88
  5. Step 5: Solve for x
    x = 10,807,707,769.88/117,154.24
  6. Step 6: Final answer
    x = 92,251.96

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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.