Home / 103,010.90-154,540.31-31,929.77

Finding the Fourth Proportional to 103,010.90, 154,540.31 and 31,929.77

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Solution

The fourth proportional to 103,010.90, 154,540.31 and 31,929.77 is: 47,902.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,010.90 : 154,540.31 = 31,929.77 : x
  2. Step 2: Convert to fraction form
    103,010.90/154,540.31 = 31,929.77/x
  3. Step 3: Cross multiply
    103,010.90x = 154,540.31 × 31,929.77
  4. Step 4: Simplify right side
    103,010.90x = 4,934,435,781.33
  5. Step 5: Solve for x
    x = 4,934,435,781.33/103,010.90
  6. Step 6: Final answer
    x = 47,902.08

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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.