Home / 136,904.44-188,928.42-77,288.44

Finding the Fourth Proportional to 136,904.44, 188,928.42 and 77,288.44

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Solution

The fourth proportional to 136,904.44, 188,928.42 and 77,288.44 is: 106,658.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,904.44 : 188,928.42 = 77,288.44 : x
  2. Step 2: Convert to fraction form
    136,904.44/188,928.42 = 77,288.44/x
  3. Step 3: Cross multiply
    136,904.44x = 188,928.42 × 77,288.44
  4. Step 4: Simplify right side
    136,904.44x = 14,601,982,853.46
  5. Step 5: Solve for x
    x = 14,601,982,853.46/136,904.44
  6. Step 6: Final answer
    x = 106,658.21

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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.