Home / 117,742.39-162,427.37-69,961.91

Finding the Fourth Proportional to 117,742.39, 162,427.37 and 69,961.91

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Solution

The fourth proportional to 117,742.39, 162,427.37 and 69,961.91 is: 96,513.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,742.39 : 162,427.37 = 69,961.91 : x
  2. Step 2: Convert to fraction form
    117,742.39/162,427.37 = 69,961.91/x
  3. Step 3: Cross multiply
    117,742.39x = 162,427.37 × 69,961.91
  4. Step 4: Simplify right side
    117,742.39x = 11,363,727,879.53
  5. Step 5: Solve for x
    x = 11,363,727,879.53/117,742.39
  6. Step 6: Final answer
    x = 96,513.48

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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.