Home / 117,739.29-162,475.27-66,755.45

Finding the Fourth Proportional to 117,739.29, 162,475.27 and 66,755.45

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Solution

The fourth proportional to 117,739.29, 162,475.27 and 66,755.45 is: 92,119.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,739.29 : 162,475.27 = 66,755.45 : x
  2. Step 2: Convert to fraction form
    117,739.29/162,475.27 = 66,755.45/x
  3. Step 3: Cross multiply
    117,739.29x = 162,475.27 × 66,755.45
  4. Step 4: Simplify right side
    117,739.29x = 10,846,109,762.72
  5. Step 5: Solve for x
    x = 10,846,109,762.72/117,739.29
  6. Step 6: Final answer
    x = 92,119.71

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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.