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Finding the Fourth Proportional to 223,110.65, 307,890.97 and 121,134.11

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Solution

The fourth proportional to 223,110.65, 307,890.97 and 121,134.11 is: 167,164.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,110.65 : 307,890.97 = 121,134.11 : x
  2. Step 2: Convert to fraction form
    223,110.65/307,890.97 = 121,134.11/x
  3. Step 3: Cross multiply
    223,110.65x = 307,890.97 × 121,134.11
  4. Step 4: Simplify right side
    223,110.65x = 37,296,098,627.99
  5. Step 5: Solve for x
    x = 37,296,098,627.99/223,110.65
  6. Step 6: Final answer
    x = 167,164.13

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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.