Home / 117,195.03-161,728.83-63,480.20

Finding the Fourth Proportional to 117,195.03, 161,728.83 and 63,480.20

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Solution

The fourth proportional to 117,195.03, 161,728.83 and 63,480.20 is: 87,602.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,195.03 : 161,728.83 = 63,480.20 : x
  2. Step 2: Convert to fraction form
    117,195.03/161,728.83 = 63,480.20/x
  3. Step 3: Cross multiply
    117,195.03x = 161,728.83 × 63,480.20
  4. Step 4: Simplify right side
    117,195.03x = 10,266,577,665.52
  5. Step 5: Solve for x
    x = 10,266,577,665.52/117,195.03
  6. Step 6: Final answer
    x = 87,602.50

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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.