Home / 117,120.94-161,627.25-63,405.82

Finding the Fourth Proportional to 117,120.94, 161,627.25 and 63,405.82

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Solution

The fourth proportional to 117,120.94, 161,627.25 and 63,405.82 is: 87,500.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,120.94 : 161,627.25 = 63,405.82 : x
  2. Step 2: Convert to fraction form
    117,120.94/161,627.25 = 63,405.82/x
  3. Step 3: Cross multiply
    117,120.94x = 161,627.25 × 63,405.82
  4. Step 4: Simplify right side
    117,120.94x = 10,248,108,320.60
  5. Step 5: Solve for x
    x = 10,248,108,320.60/117,120.94
  6. Step 6: Final answer
    x = 87,500.22

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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.