Home / 148,561.56-222,876.96-81,985.68

Finding the Fourth Proportional to 148,561.56, 222,876.96 and 81,985.68

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Solution

The fourth proportional to 148,561.56, 222,876.96 and 81,985.68 is: 122,997.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,561.56 : 222,876.96 = 81,985.68 : x
  2. Step 2: Convert to fraction form
    148,561.56/222,876.96 = 81,985.68/x
  3. Step 3: Cross multiply
    148,561.56x = 222,876.96 × 81,985.68
  4. Step 4: Simplify right side
    148,561.56x = 18,272,719,121.93
  5. Step 5: Solve for x
    x = 18,272,719,121.93/148,561.56
  6. Step 6: Final answer
    x = 122,997.63

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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.