Home / 219,934.16-303,438.60-123,123.79

Finding the Fourth Proportional to 219,934.16, 303,438.60 and 123,123.79

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Solution

The fourth proportional to 219,934.16, 303,438.60 and 123,123.79 is: 169,871.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,934.16 : 303,438.60 = 123,123.79 : x
  2. Step 2: Convert to fraction form
    219,934.16/303,438.60 = 123,123.79/x
  3. Step 3: Cross multiply
    219,934.16x = 303,438.60 × 123,123.79
  4. Step 4: Simplify right side
    219,934.16x = 37,360,510,843.59
  5. Step 5: Solve for x
    x = 37,360,510,843.59/219,934.16
  6. Step 6: Final answer
    x = 169,871.34

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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.