Home / 257,817.03-386,876.05-108,044.89

Finding the Fourth Proportional to 257,817.03, 386,876.05 and 108,044.89

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Solution

The fourth proportional to 257,817.03, 386,876.05 and 108,044.89 is: 162,130.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,817.03 : 386,876.05 = 108,044.89 : x
  2. Step 2: Convert to fraction form
    257,817.03/386,876.05 = 108,044.89/x
  3. Step 3: Cross multiply
    257,817.03x = 386,876.05 × 108,044.89
  4. Step 4: Simplify right side
    257,817.03x = 41,799,979,028.58
  5. Step 5: Solve for x
    x = 41,799,979,028.58/257,817.03
  6. Step 6: Final answer
    x = 162,130.41

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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.