Home / 123,727.06-185,683.86-90,532.75

Finding the Fourth Proportional to 123,727.06, 185,683.86 and 90,532.75

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Solution

The fourth proportional to 123,727.06, 185,683.86 and 90,532.75 is: 135,867.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,727.06 : 185,683.86 = 90,532.75 : x
  2. Step 2: Convert to fraction form
    123,727.06/185,683.86 = 90,532.75/x
  3. Step 3: Cross multiply
    123,727.06x = 185,683.86 × 90,532.75
  4. Step 4: Simplify right side
    123,727.06x = 16,810,470,476.42
  5. Step 5: Solve for x
    x = 16,810,470,476.42/123,727.06
  6. Step 6: Final answer
    x = 135,867.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.