Home / 117,964.49-162,790.16-64,249.34

Finding the Fourth Proportional to 117,964.49, 162,790.16 and 64,249.34

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Solution

The fourth proportional to 117,964.49, 162,790.16 and 64,249.34 is: 88,663.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,964.49 : 162,790.16 = 64,249.34 : x
  2. Step 2: Convert to fraction form
    117,964.49/162,790.16 = 64,249.34/x
  3. Step 3: Cross multiply
    117,964.49x = 162,790.16 × 64,249.34
  4. Step 4: Simplify right side
    117,964.49x = 10,459,159,203.30
  5. Step 5: Solve for x
    x = 10,459,159,203.30/117,964.49
  6. Step 6: Final answer
    x = 88,663.63

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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.