Home / 222,981.91-307,715.23-121,007.37

Finding the Fourth Proportional to 222,981.91, 307,715.23 and 121,007.37

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Solution

The fourth proportional to 222,981.91, 307,715.23 and 121,007.37 is: 166,990.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,981.91 : 307,715.23 = 121,007.37 : x
  2. Step 2: Convert to fraction form
    222,981.91/307,715.23 = 121,007.37/x
  3. Step 3: Cross multiply
    222,981.91x = 307,715.23 × 121,007.37
  4. Step 4: Simplify right side
    222,981.91x = 37,235,810,691.25
  5. Step 5: Solve for x
    x = 37,235,810,691.25/222,981.91
  6. Step 6: Final answer
    x = 166,990.28

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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.