Home / 136,845.59-188,847.83-76,416.95

Finding the Fourth Proportional to 136,845.59, 188,847.83 and 76,416.95

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Solution

The fourth proportional to 136,845.59, 188,847.83 and 76,416.95 is: 105,455.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,845.59 : 188,847.83 = 76,416.95 : x
  2. Step 2: Convert to fraction form
    136,845.59/188,847.83 = 76,416.95/x
  3. Step 3: Cross multiply
    136,845.59x = 188,847.83 × 76,416.95
  4. Step 4: Simplify right side
    136,845.59x = 14,431,175,845.88
  5. Step 5: Solve for x
    x = 14,431,175,845.88/136,845.59
  6. Step 6: Final answer
    x = 105,455.91

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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.