Home / 117,743.76-162,429.26-69,963.28

Finding the Fourth Proportional to 117,743.76, 162,429.26 and 69,963.28

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Solution

The fourth proportional to 117,743.76, 162,429.26 and 69,963.28 is: 96,515.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,743.76 : 162,429.26 = 69,963.28 : x
  2. Step 2: Convert to fraction form
    117,743.76/162,429.26 = 69,963.28/x
  3. Step 3: Cross multiply
    117,743.76x = 162,429.26 × 69,963.28
  4. Step 4: Simplify right side
    117,743.76x = 11,364,083,972.48
  5. Step 5: Solve for x
    x = 11,364,083,972.48/117,743.76
  6. Step 6: Final answer
    x = 96,515.38

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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.