Home / 223,095.79-307,872.66-121,121.38

Finding the Fourth Proportional to 223,095.79, 307,872.66 and 121,121.38

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Solution

The fourth proportional to 223,095.79, 307,872.66 and 121,121.38 is: 167,147.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,095.79 : 307,872.66 = 121,121.38 : x
  2. Step 2: Convert to fraction form
    223,095.79/307,872.66 = 121,121.38/x
  3. Step 3: Cross multiply
    223,095.79x = 307,872.66 × 121,121.38
  4. Step 4: Simplify right side
    223,095.79x = 37,289,961,443.47
  5. Step 5: Solve for x
    x = 37,289,961,443.47/223,095.79
  6. Step 6: Final answer
    x = 167,147.76

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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.