Home / 223,966.97-309,071.77-121,992.11

Finding the Fourth Proportional to 223,966.97, 309,071.77 and 121,992.11

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Solution

The fourth proportional to 223,966.97, 309,071.77 and 121,992.11 is: 168,347.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,966.97 : 309,071.77 = 121,992.11 : x
  2. Step 2: Convert to fraction form
    223,966.97/309,071.77 = 121,992.11/x
  3. Step 3: Cross multiply
    223,966.97x = 309,071.77 × 121,992.11
  4. Step 4: Simplify right side
    223,966.97x = 37,704,317,363.73
  5. Step 5: Solve for x
    x = 37,704,317,363.73/223,966.97
  6. Step 6: Final answer
    x = 168,347.67

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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.