Home / 223,201.42-308,021.64-121,226.95

Finding the Fourth Proportional to 223,201.42, 308,021.64 and 121,226.95

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Solution

The fourth proportional to 223,201.42, 308,021.64 and 121,226.95 is: 167,295.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,201.42 : 308,021.64 = 121,226.95 : x
  2. Step 2: Convert to fraction form
    223,201.42/308,021.64 = 121,226.95/x
  3. Step 3: Cross multiply
    223,201.42x = 308,021.64 × 121,226.95
  4. Step 4: Simplify right side
    223,201.42x = 37,340,523,881.62
  5. Step 5: Solve for x
    x = 37,340,523,881.62/223,201.42
  6. Step 6: Final answer
    x = 167,295.19

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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.