Home / 136,619.85-205,007.54-89,894.73

Finding the Fourth Proportional to 136,619.85, 205,007.54 and 89,894.73

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Solution

The fourth proportional to 136,619.85, 205,007.54 and 89,894.73 is: 134,893.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,619.85 : 205,007.54 = 89,894.73 : x
  2. Step 2: Convert to fraction form
    136,619.85/205,007.54 = 89,894.73/x
  3. Step 3: Cross multiply
    136,619.85x = 205,007.54 × 89,894.73
  4. Step 4: Simplify right side
    136,619.85x = 18,429,097,456.26
  5. Step 5: Solve for x
    x = 18,429,097,456.26/136,619.85
  6. Step 6: Final answer
    x = 134,893.26

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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.