Home / 210,629.20-290,668.29-115,136.27

Finding the Fourth Proportional to 210,629.20, 290,668.29 and 115,136.27

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Solution

The fourth proportional to 210,629.20, 290,668.29 and 115,136.27 is: 158,888.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,629.20 : 290,668.29 = 115,136.27 : x
  2. Step 2: Convert to fraction form
    210,629.20/290,668.29 = 115,136.27/x
  3. Step 3: Cross multiply
    210,629.20x = 290,668.29 × 115,136.27
  4. Step 4: Simplify right side
    210,629.20x = 33,466,462,717.88
  5. Step 5: Solve for x
    x = 33,466,462,717.88/210,629.20
  6. Step 6: Final answer
    x = 158,888.05

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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.