Home / 188,316.48-259,921.92-107,790.66

Finding the Fourth Proportional to 188,316.48, 259,921.92 and 107,790.66

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Solution

The fourth proportional to 188,316.48, 259,921.92 and 107,790.66 is: 148,776.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,316.48 : 259,921.92 = 107,790.66 : x
  2. Step 2: Convert to fraction form
    188,316.48/259,921.92 = 107,790.66/x
  3. Step 3: Cross multiply
    188,316.48x = 259,921.92 × 107,790.66
  4. Step 4: Simplify right side
    188,316.48x = 28,017,155,305.27
  5. Step 5: Solve for x
    x = 28,017,155,305.27/188,316.48
  6. Step 6: Final answer
    x = 148,776.97

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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.