Home / 117,121.73-161,626.05-63,406.26

Finding the Fourth Proportional to 117,121.73, 161,626.05 and 63,406.26

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Solution

The fourth proportional to 117,121.73, 161,626.05 and 63,406.26 is: 87,499.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,121.73 : 161,626.05 = 63,406.26 : x
  2. Step 2: Convert to fraction form
    117,121.73/161,626.05 = 63,406.26/x
  3. Step 3: Cross multiply
    117,121.73x = 161,626.05 × 63,406.26
  4. Step 4: Simplify right side
    117,121.73x = 10,248,103,349.07
  5. Step 5: Solve for x
    x = 10,248,103,349.07/117,121.73
  6. Step 6: Final answer
    x = 87,499.59

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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.