Home / 136,663.86-188,577.26-76,227.42

Finding the Fourth Proportional to 136,663.86, 188,577.26 and 76,227.42

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Solution

The fourth proportional to 136,663.86, 188,577.26 and 76,227.42 is: 105,183.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,663.86 : 188,577.26 = 76,227.42 : x
  2. Step 2: Convert to fraction form
    136,663.86/188,577.26 = 76,227.42/x
  3. Step 3: Cross multiply
    136,663.86x = 188,577.26 × 76,227.42
  4. Step 4: Simplify right side
    136,663.86x = 14,374,758,000.47
  5. Step 5: Solve for x
    x = 14,374,758,000.47/136,663.86
  6. Step 6: Final answer
    x = 105,183.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.