Home / 121,272.60-181,995.30-51,202.20

Finding the Fourth Proportional to 121,272.60, 181,995.30 and 51,202.20

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Solution

The fourth proportional to 121,272.60, 181,995.30 and 51,202.20 is: 76,839.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,272.60 : 181,995.30 = 51,202.20 : x
  2. Step 2: Convert to fraction form
    121,272.60/181,995.30 = 51,202.20/x
  3. Step 3: Cross multiply
    121,272.60x = 181,995.30 × 51,202.20
  4. Step 4: Simplify right side
    121,272.60x = 9,318,559,749.66
  5. Step 5: Solve for x
    x = 9,318,559,749.66/121,272.60
  6. Step 6: Final answer
    x = 76,839.78

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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.