Home / 210,976.32-291,147.75-115,489.11

Finding the Fourth Proportional to 210,976.32, 291,147.75 and 115,489.11

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Solution

The fourth proportional to 210,976.32, 291,147.75 and 115,489.11 is: 159,375.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,976.32 : 291,147.75 = 115,489.11 : x
  2. Step 2: Convert to fraction form
    210,976.32/291,147.75 = 115,489.11/x
  3. Step 3: Cross multiply
    210,976.32x = 291,147.75 × 115,489.11
  4. Step 4: Simplify right side
    210,976.32x = 33,624,394,526.00
  5. Step 5: Solve for x
    x = 33,624,394,526.00/210,976.32
  6. Step 6: Final answer
    x = 159,375.21

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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.