Home / 257,902.98-386,730.03-108,103.05

Finding the Fourth Proportional to 257,902.98, 386,730.03 and 108,103.05

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Solution

The fourth proportional to 257,902.98, 386,730.03 and 108,103.05 is: 162,102.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,902.98 : 386,730.03 = 108,103.05 : x
  2. Step 2: Convert to fraction form
    257,902.98/386,730.03 = 108,103.05/x
  3. Step 3: Cross multiply
    257,902.98x = 386,730.03 × 108,103.05
  4. Step 4: Simplify right side
    257,902.98x = 41,806,694,479.22
  5. Step 5: Solve for x
    x = 41,806,694,479.22/257,902.98
  6. Step 6: Final answer
    x = 162,102.41

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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.