Home / 121,255.81-181,905.58-54,727.27

Finding the Fourth Proportional to 121,255.81, 181,905.58 and 54,727.27

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Solution

The fourth proportional to 121,255.81, 181,905.58 and 54,727.27 is: 82,100.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,255.81 : 181,905.58 = 54,727.27 : x
  2. Step 2: Convert to fraction form
    121,255.81/181,905.58 = 54,727.27/x
  3. Step 3: Cross multiply
    121,255.81x = 181,905.58 × 54,727.27
  4. Step 4: Simplify right side
    121,255.81x = 9,955,195,404.81
  5. Step 5: Solve for x
    x = 9,955,195,404.81/121,255.81
  6. Step 6: Final answer
    x = 82,100.77

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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.