Home / 117,890.30-162,663.39-70,134.32

Finding the Fourth Proportional to 117,890.30, 162,663.39 and 70,134.32

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Solution

The fourth proportional to 117,890.30, 162,663.39 and 70,134.32 is: 96,770.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,890.30 : 162,663.39 = 70,134.32 : x
  2. Step 2: Convert to fraction form
    117,890.30/162,663.39 = 70,134.32/x
  3. Step 3: Cross multiply
    117,890.30x = 162,663.39 × 70,134.32
  4. Step 4: Simplify right side
    117,890.30x = 11,408,286,653.20
  5. Step 5: Solve for x
    x = 11,408,286,653.20/117,890.30
  6. Step 6: Final answer
    x = 96,770.36

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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.