Home / 100,954,980.75-139,432,793.62-67,857,768.85

Finding the Fourth Proportional to 100,954,980.75, 139,432,793.62 and 67,857,768.85

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Solution

The fourth proportional to 100,954,980.75, 139,432,793.62 and 67,857,768.85 is: 93,720,965.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,954,980.75 : 139,432,793.62 = 67,857,768.85 : x
  2. Step 2: Convert to fraction form
    100,954,980.75/139,432,793.62 = 67,857,768.85/x
  3. Step 3: Cross multiply
    100,954,980.75x = 139,432,793.62 × 67,857,768.85
  4. Step 4: Simplify right side
    100,954,980.75x = 9,461,598,279,575,714
  5. Step 5: Solve for x
    x = 9,461,598,279,575,714/100,954,980.75
  6. Step 6: Final answer
    x = 93,720,965.62

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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.