Home / 117,620.40-162,317.16-63,905.52

Finding the Fourth Proportional to 117,620.40, 162,317.16 and 63,905.52

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Solution

The fourth proportional to 117,620.40, 162,317.16 and 63,905.52 is: 88,190.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,620.40 : 162,317.16 = 63,905.52 : x
  2. Step 2: Convert to fraction form
    117,620.40/162,317.16 = 63,905.52/x
  3. Step 3: Cross multiply
    117,620.40x = 162,317.16 × 63,905.52
  4. Step 4: Simplify right side
    117,620.40x = 10,372,962,514.72
  5. Step 5: Solve for x
    x = 10,372,962,514.72/117,620.40
  6. Step 6: Final answer
    x = 88,190.17

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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.