Home / 121,163.55-181,771.47-36,921.53

Finding the Fourth Proportional to 121,163.55, 181,771.47 and 36,921.53

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Solution

The fourth proportional to 121,163.55, 181,771.47 and 36,921.53 is: 55,390.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,163.55 : 181,771.47 = 36,921.53 : x
  2. Step 2: Convert to fraction form
    121,163.55/181,771.47 = 36,921.53/x
  3. Step 3: Cross multiply
    121,163.55x = 181,771.47 × 36,921.53
  4. Step 4: Simplify right side
    121,163.55x = 6,711,279,873.89
  5. Step 5: Solve for x
    x = 6,711,279,873.89/121,163.55
  6. Step 6: Final answer
    x = 55,390.25

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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.