Home / 136,342.53-188,150.45-79,763.49

Finding the Fourth Proportional to 136,342.53, 188,150.45 and 79,763.49

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Solution

The fourth proportional to 136,342.53, 188,150.45 and 79,763.49 is: 110,072.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,342.53 : 188,150.45 = 79,763.49 : x
  2. Step 2: Convert to fraction form
    136,342.53/188,150.45 = 79,763.49/x
  3. Step 3: Cross multiply
    136,342.53x = 188,150.45 × 79,763.49
  4. Step 4: Simplify right side
    136,342.53x = 15,007,536,138.25
  5. Step 5: Solve for x
    x = 15,007,536,138.25/136,342.53
  6. Step 6: Final answer
    x = 110,072.30

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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.