Home / 121,284.64-181,839.36-51,125.60

Finding the Fourth Proportional to 121,284.64, 181,839.36 and 51,125.60

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Solution

The fourth proportional to 121,284.64, 181,839.36 and 51,125.60 is: 76,651.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,284.64 : 181,839.36 = 51,125.60 : x
  2. Step 2: Convert to fraction form
    121,284.64/181,839.36 = 51,125.60/x
  3. Step 3: Cross multiply
    121,284.64x = 181,839.36 × 51,125.60
  4. Step 4: Simplify right side
    121,284.64x = 9,296,646,383.62
  5. Step 5: Solve for x
    x = 9,296,646,383.62/121,284.64
  6. Step 6: Final answer
    x = 76,651.47

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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.