Home / 243,927.35-365,808.94-81,788.57

Finding the Fourth Proportional to 243,927.35, 365,808.94 and 81,788.57

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Solution

The fourth proportional to 243,927.35, 365,808.94 and 81,788.57 is: 122,655.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,927.35 : 365,808.94 = 81,788.57 : x
  2. Step 2: Convert to fraction form
    243,927.35/365,808.94 = 81,788.57/x
  3. Step 3: Cross multiply
    243,927.35x = 365,808.94 × 81,788.57
  4. Step 4: Simplify right side
    243,927.35x = 29,918,988,062.30
  5. Step 5: Solve for x
    x = 29,918,988,062.30/243,927.35
  6. Step 6: Final answer
    x = 122,655.33

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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.