Home / 215,727.09-323,736.44-75,486.93

Finding the Fourth Proportional to 215,727.09, 323,736.44 and 75,486.93

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Solution

The fourth proportional to 215,727.09, 323,736.44 and 75,486.93 is: 113,281.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,727.09 : 323,736.44 = 75,486.93 : x
  2. Step 2: Convert to fraction form
    215,727.09/323,736.44 = 75,486.93/x
  3. Step 3: Cross multiply
    215,727.09x = 323,736.44 × 75,486.93
  4. Step 4: Simplify right side
    215,727.09x = 24,437,869,607.29
  5. Step 5: Solve for x
    x = 24,437,869,607.29/215,727.09
  6. Step 6: Final answer
    x = 113,281.41

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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.