Home / 117,577.38-162,167.86-81,749.46

Finding the Fourth Proportional to 117,577.38, 162,167.86 and 81,749.46

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Solution

The fourth proportional to 117,577.38, 162,167.86 and 81,749.46 is: 112,752.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,577.38 : 162,167.86 = 81,749.46 : x
  2. Step 2: Convert to fraction form
    117,577.38/162,167.86 = 81,749.46/x
  3. Step 3: Cross multiply
    117,577.38x = 162,167.86 × 81,749.46
  4. Step 4: Simplify right side
    117,577.38x = 13,257,134,984.36
  5. Step 5: Solve for x
    x = 13,257,134,984.36/117,577.38
  6. Step 6: Final answer
    x = 112,752.43

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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.