Home / 257,910.14-386,740.78-108,110.20

Finding the Fourth Proportional to 257,910.14, 386,740.78 and 108,110.20

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Solution

The fourth proportional to 257,910.14, 386,740.78 and 108,110.20 is: 162,113.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,910.14 : 386,740.78 = 108,110.20 : x
  2. Step 2: Convert to fraction form
    257,910.14/386,740.78 = 108,110.20/x
  3. Step 3: Cross multiply
    257,910.14x = 386,740.78 × 108,110.20
  4. Step 4: Simplify right side
    257,910.14x = 41,810,623,073.96
  5. Step 5: Solve for x
    x = 41,810,623,073.96/257,910.14
  6. Step 6: Final answer
    x = 162,113.14

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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.