Home / 210,129.22-289,972.60-114,635.90

Finding the Fourth Proportional to 210,129.22, 289,972.60 and 114,635.90

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Solution

The fourth proportional to 210,129.22, 289,972.60 and 114,635.90 is: 158,194.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,129.22 : 289,972.60 = 114,635.90 : x
  2. Step 2: Convert to fraction form
    210,129.22/289,972.60 = 114,635.90/x
  3. Step 3: Cross multiply
    210,129.22x = 289,972.60 × 114,635.90
  4. Step 4: Simplify right side
    210,129.22x = 33,241,269,976.34
  5. Step 5: Solve for x
    x = 33,241,269,976.34/210,129.22
  6. Step 6: Final answer
    x = 158,194.42

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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.