Home / 117,121.98-161,626.39-63,406.54

Finding the Fourth Proportional to 117,121.98, 161,626.39 and 63,406.54

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Solution

The fourth proportional to 117,121.98, 161,626.39 and 63,406.54 is: 87,499.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,121.98 : 161,626.39 = 63,406.54 : x
  2. Step 2: Convert to fraction form
    117,121.98/161,626.39 = 63,406.54/x
  3. Step 3: Cross multiply
    117,121.98x = 161,626.39 × 63,406.54
  4. Step 4: Simplify right side
    117,121.98x = 10,248,170,162.59
  5. Step 5: Solve for x
    x = 10,248,170,162.59/117,121.98
  6. Step 6: Final answer
    x = 87,499.97

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1.5x scale

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.