Home / 105,177,999.70-157,766,999.55-71,204,137.30

Finding the Fourth Proportional to 105,177,999.70, 157,766,999.55 and 71,204,137.30

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Solution

The fourth proportional to 105,177,999.70, 157,766,999.55 and 71,204,137.30 is: 106,806,205.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,177,999.70 : 157,766,999.55 = 71,204,137.30 : x
  2. Step 2: Convert to fraction form
    105,177,999.70/157,766,999.55 = 71,204,137.30/x
  3. Step 3: Cross multiply
    105,177,999.70x = 157,766,999.55 × 71,204,137.30
  4. Step 4: Simplify right side
    105,177,999.70x = 11,233,663,097,367,238
  5. Step 5: Solve for x
    x = 11,233,663,097,367,238/105,177,999.70
  6. Step 6: Final answer
    x = 106,806,205.95

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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.