Home / 121,128.67-181,559.19-50,012.09

Finding the Fourth Proportional to 121,128.67, 181,559.19 and 50,012.09

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Solution

The fourth proportional to 121,128.67, 181,559.19 and 50,012.09 is: 74,962.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,128.67 : 181,559.19 = 50,012.09 : x
  2. Step 2: Convert to fraction form
    121,128.67/181,559.19 = 50,012.09/x
  3. Step 3: Cross multiply
    121,128.67x = 181,559.19 × 50,012.09
  4. Step 4: Simplify right side
    121,128.67x = 9,080,155,532.47
  5. Step 5: Solve for x
    x = 9,080,155,532.47/121,128.67
  6. Step 6: Final answer
    x = 74,962.90

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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.