Home / 218,669.71-301,773.39-121,873.61

Finding the Fourth Proportional to 218,669.71, 301,773.39 and 121,873.61

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Solution

The fourth proportional to 218,669.71, 301,773.39 and 121,873.61 is: 168,190.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,669.71 : 301,773.39 = 121,873.61 : x
  2. Step 2: Convert to fraction form
    218,669.71/301,773.39 = 121,873.61/x
  3. Step 3: Cross multiply
    218,669.71x = 301,773.39 × 121,873.61
  4. Step 4: Simplify right side
    218,669.71x = 36,778,212,441.24
  5. Step 5: Solve for x
    x = 36,778,212,441.24/218,669.71
  6. Step 6: Final answer
    x = 168,190.70

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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.