Home / 109,477.05-151,091.78-61,729.44

Finding the Fourth Proportional to 109,477.05, 151,091.78 and 61,729.44

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Solution

The fourth proportional to 109,477.05, 151,091.78 and 61,729.44 is: 85,194.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,477.05 : 151,091.78 = 61,729.44 : x
  2. Step 2: Convert to fraction form
    109,477.05/151,091.78 = 61,729.44/x
  3. Step 3: Cross multiply
    109,477.05x = 151,091.78 × 61,729.44
  4. Step 4: Simplify right side
    109,477.05x = 9,326,810,659.36
  5. Step 5: Solve for x
    x = 9,326,810,659.36/109,477.05
  6. Step 6: Final answer
    x = 85,194.21

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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.