Home / 136,961.06-205,072.41-89,458.52

Finding the Fourth Proportional to 136,961.06, 205,072.41 and 89,458.52

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Solution

The fourth proportional to 136,961.06, 205,072.41 and 89,458.52 is: 133,946.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,961.06 : 205,072.41 = 89,458.52 : x
  2. Step 2: Convert to fraction form
    136,961.06/205,072.41 = 89,458.52/x
  3. Step 3: Cross multiply
    136,961.06x = 205,072.41 × 89,458.52
  4. Step 4: Simplify right side
    136,961.06x = 18,345,474,291.43
  5. Step 5: Solve for x
    x = 18,345,474,291.43/136,961.06
  6. Step 6: Final answer
    x = 133,946.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.