Home / 117,964.11-162,789.64-64,248.96

Finding the Fourth Proportional to 117,964.11, 162,789.64 and 64,248.96

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Solution

The fourth proportional to 117,964.11, 162,789.64 and 64,248.96 is: 88,663.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,964.11 : 162,789.64 = 64,248.96 : x
  2. Step 2: Convert to fraction form
    117,964.11/162,789.64 = 64,248.96/x
  3. Step 3: Cross multiply
    117,964.11x = 162,789.64 × 64,248.96
  4. Step 4: Simplify right side
    117,964.11x = 10,459,064,908.15
  5. Step 5: Solve for x
    x = 10,459,064,908.15/117,964.11
  6. Step 6: Final answer
    x = 88,663.11

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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.